While reading Skyward by Brandon Sanderson, I fell in love with many of the characters. Spensa and Skyward Flight are fun worth spending time with, if you have not read the book already. The non-human characters became my absolute favorites. After Isaac Stewart created an amazingly cute depiction of Doomslug, I had to create one for myself. The little yellow and blue space slug can pull at you with her gentle fluting. This November, readers find out more about Doomslug in Starsight. In support, I thought others might enjoy creating their own space slugs.

My mission was to create a slug pattern to create a cuddly Doomslug that mimics Stewart’s design. After some experiments with dart lines, curves, and other sewing tricks, I hit upon the proper shape to mimic Stewart’s rather rounded artwork rather than using a pattern that looks like an Earth slug (footnote 1).

Making your own space slug requires a handful of tools and a moderate skill level at sewing. The included pattern and instructions will walk you through the process.

Sewing Supplies:


  • ½ yard of primary material
  • ½ yard of accent material
  • ½ yard of fusible interfacing medium weight
  • Spools of thread of matching colors
  • Cotton or polyester stuffing
  • Black fabric material for eyes
  • Black and white embroidery thread
  • Sewing machine
  • Sewing pins
  • Scissors
  • Bobbins

Optional Supplies:

  • Walking Foot for your sewing machine – Highly recommended.
  • Roller cutting blade
  • Metal ruler/flat edge
  • 1/8 yard Double sided interfacing for eyes

More Optional supplies for an internal weighted pouch:

Reason – This gives the slug more heft and allows it to balance on its own better.

  • ¼ yard of third cotton material
  • Poly-fil pellets – up to 1 pound
  • Cotton or polyester batting

Note on Material:

Any material can be used to create your space slug: cotton, fleece, flannel, velveteen, etc. When working with the thicker sections, a walking foot will save you a number of headaches. If your fabric has a nap, including velvet or micro fleece, it’s best to cut your pattern pieces one layer at a time. Double check that the nap direction is the one you want. Ideally the nap will flow smoothly from the front to the back. If you plan to use velvet, please read this helpful tutorial before cutting your pattern pieces.

I bought a bright polyester velvet for many of my space slug creations. The one shown with straight spines was made with pure plush fleece, which is incredibly soft.


The pattern is printed on three pages of 11”x17″.
It will create a slug approximately: 6” tall x 13” long x 16” around.

Scale up or down to change the size of the slug. The ruffle and spines pattern need to be altered less, they are fine for a 15% +/- in size change. Brandon Sanderson said my original design was “just a tad too big.” The original design was 10% larger, creating a slug: 8” tall x 15” long x 20” around.

Cutting Directions:

Lay out the Body Pattern pieces on the main fabric. Match the nap of your fabric if applicable.
Cut matching pieces on interfacing as well. The second cut should be a mirror to the first.

Body Pattern pieces are:

1D Pattern PIece

Mirror of the pattern pieces 1D.


  • Body Side (1A) – cut 2
  • Body Base (1B) – cut 1
  • Face piece (1C) – cut 1
  • Top curve (1D) – cut 2
  • Top side (1E) – cut 2
  • Head Top (1F) – cut 1
  • Eye (1G) – cut 2


Accent Pattern pieces cut on accent fabric:
Body Ruffle (2A) – cut 1 – Cut on a double fold – Needs to be at least 40″ to go around the body with extra gathering. For a fuller ruffle, cut a longer piece or sew two pieces together.

Spines (2B) – cut 4 – Zig-zag spines should be cut on a double fold – Need to be between 50″ to 60″ to have enough length for deep loops.

Internal pouch – no pattern, no interfacing – simply cut a rectangle 20” long by 4” wide.

Note: The accent pieces are all long rectangles. It’s easiest to square up your fabric on a self-healing mat. Cut in strips with the help of a straight edge and using a roller blade cutter.

Design Choices:
Before you start making your space slug, you need to decide which style you are going to make. Besides fabric choice, each creator chooses the style of eyes and spines they want to make. For the eyes, pick if you want to use fabric eyes or if you will embroider them.
The spines are the harder choice, and often driven by your fabric choice. Thicker fleece will be very difficult to turn into the zig-zag loops.

Spine option 1: Zig-zags – Requires more material and more sewing skills. Your spine strips will each need to be between 50” to 60” in length. Thus the “cut on the fold” note for the pattern could represent a double fold. This design better mimics the official Doomslug design, but are not true spines.

Option 2: Straight Tubes – Requires the spine stripes to be the length of the slug’s body, about 14” each, if you don’t resize the pattern. These are much easier and quicker to attach.

Spine Opt. 1 (right) and Opt. 2 (left)

Two different spine designs. Opt. 1 – Zig-zag (right) and Opt. 2 – Straight (left)

Sewing Directions:

Body pieces have a seam allowance of ⅜”

The full sewing directions with helpful images are found here and can be printed easily.
The basic sewing order of operations are:

  1. Sew the spine tubes together – four of 2B
  2. Sew the Ruffle – one of 2A
  3. Iron the interfacing to all the body parts – 1A to 1F.
  4. Pick the type of eyes you want to create.  Attach or sew them onto the face piece 1C.
  5. Sew the lower body together: 1A (2 pieces), 1B, and 1C
  6. Sew the ruffle 2A onto the lower body piece.
  7. Pin the Spines 2B to first 1D for each side.
  8. Lay 1E on top of the spines, sew together.
  9. Attach a Spine 2B to Half of 1F.
  10. Attach 1F to one side of the top body.
  11. Layout and attach the Spines to the joined 1F and 1E piece.
  12. Attach the other side of the body to finish the top half of the slug.
  13. To attach the two halves together – Right sides of fabric together, line up the center of the piece 1F to the face 1C. Pin around the body. Be sure to leave an opening at the back or on a lower side for turning the body right side out.
  14. Create the internal weighted pouch by sewing a simple pouch.
  15. Fill with poly-fil beads, then sew closed.
  16. Wrap pouch with batting, stuff into the slug body.
  17. Use cotton or poly fiberfil to stuff the slug body to the density you wish.
  18. Sew the opening closed. I hand-stitch mine.
Slug body before finishing

Bottom and top half of the space slug body before joining them together.

Enjoy taking your space slug on adventures!

Sanderson and Doomslug, 2019

Brandon Sanderson with Doomslug at DragonCon


Doomslug group, DragonCon 2019

Gathering of Doomslugs at DragonCon, 2019.

If you make a space slug, please share your creation with me, Deana Whitney, either by emailing me at Workshop@jordancon.org, sharing it on Instagram at JordanConInc or Doomslug_Adventures, or showing it directly to Isaac Stewart at Izykstewart.

Note: This Space slug pattern is for fun and personal use only. You may not use this pattern to create a for-profit item. Deana Whitney is the creator and owner of the sewing pattern. Copyright of Doomslug is held by Dragonsteel Entertainment, Inc.

All photos copyright by Deana Whitney, 2019.

Footnote 1:

My first version of Doomslug was made for the signing party, but it looked like an earth slug.  To create it, I enlarged the Delilah Iris by 200% to create a 8” long slug. The back spines are a rectangle piece accordion folded, whipped stitched closed, attached to the back piece, then cut in random spikes. The bottom ruffle was another enlargement of the base pattern piece.

Earth Slug

Slugs from the Delilah Iris pattern.

April 26, 2019
  • Playing the Ocarina

    April 26, 2019  2:30 pm - 3:30 pm


    Do you love the Zelda soundtrack? You might want to learn how to play the ocarina! Bring your own or borrow one of the 9 practice ocarinas. Musician and writer Lydia Sherrer will walk students through the basics of the instrument, its scales, and how to play a Zelda tune. Other requested tunes welcome too. Limit 12 playing students – observers welcome, ages 6+ welcome.

    Ocarina’s can be bought online at:
    Most affordable but low quality: Amazon https://www.amazon.com/dp/B0148EQYA8
    High quality beginner ocarina for lowest price: STL Ocarina

    Panelists: Lydia Sherrer

    See more details


  • Learn to Cut Glass by a Master, part 1 - FULL

    April 26, 2019  4:00 pm - 5:00 pm


    Master stained glass artisan, Leia Powell, will be providing students the tools, and teaching the skills, they need to learn the art of glass cutting. Students will leave the class with a completed 9 ½”x8 ½” piece to take home! This workshop has a $100 fee, and includes a student kit full of tools and glass to keep. A waiver must be signed, and Band-aids will be provided. This class is FULL.
    Contact: fearandtrust@yahoo.com.

    Panelists: Leia Powell

    See more details


  • Learn to Cut Glass by a Master, part 2 - FULL

    April 26, 2019  5:30 pm - 6:30 pm


    Continuation of previous glass cutting class.

    Panelists: Leia Powell

    See more details


  • Pokemon Trading

    April 26, 2019  8:30 pm - 9:30 pm


    JordanCon Pokemon League Meetup! Trade anything from best tips to best Pokemon, during a social hour of fun. Find your Con team riding party or just make new friends.

    Panelists: Deana Whitney

    See more details


April 27, 2019
  • Origami: WoT and Cosmere style

    April 27, 2019  10:00 am - 11:00 am


    Make origami creations based on Robert Jordan and Brandon Sanderson's books. Models include the Aes Sedai symbol (Yin Yang), a snake, a cremling, a Shardblade, and all the stars in the Cosmere. Experience folding paper and reading origami diagrams is helpful but not required. Each student will take home 280 sheets of paper in various sizes. Limit 10 students, ages 6+ welcome, material fee $5.00.

    Panelists: Karen Ahlstrom

    See more details


  • Irish Textiles of the early Middle Ages

    April 27, 2019  11:30 am - 12:30 pm


    Learn some of the history and complexity of early Irish & Norse textiles. Add richness to writing description or costume designing by knowing the how and why of dress construction from the periods. Ask questions of historical expert and writer Morgan Smith. Bring a USB drive to the class to take home a full copy of her presentation. Enjoy the Q&A session as well.

    Panelists: Morgan Smith

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  • Typesetting & Cover Design

    April 27, 2019  1:00 pm - 2:00 pm


    Join John G. Hartness as he shows you quick and inexpensive ways to create high-quality ebook and print book layout, and gives you pointers on finding excellent covers for your book without breaking the bank.

    Panelists: John G. Hartness

    See more details


  • Ceramics Painting

    April 27, 2019  2:30 pm - 3:30 pm


    Join artist Amelie Downing in painting a WoT inspired ceramic design. Painting takes time, so the class may drift over into the 30 minutes between panels. Students will have to leave their designs to be sealed and dry after class. Students can pick up their items after a 2-hour drying time. Sign up by registration, Limit 15 students, age 8+ welcome, material fee $10.00.

    Panelists: Amelie Downing

    See more details


  • Science Experiments

    April 27, 2019  4:00 pm - 5:00 pm


    Sci-fi geeks - learn about harnessing the power of magnetism to build and take home your own Gauss rifle! This workshop is an extension of the Science and SF for Kids panel. Signup by registration, Limit 10 students, ages 8+ welcomed, material fee $10.00.

    Panelists: Bryan Adomanis

    See more details


  • Pub Talk

    April 27, 2019  8:30 pm - 9:30 pm


    Come join us for casual conversation with publishing pros. Not a formal panel, just a get-together to chat. Once the time slot is done, activity will likely move to the bar.

    Panelists: Diana M. Pho

    See more details


April 28, 2019
  • Glass Art, part 1 - FULL

    April 28, 2019  10:00 am - 11:00 am


    Master stained glass artisan, Leia Powell, will be providing students the tools, and teaching the skills, they need to learn the art of glass cutting. Students will leave the class with a completed 9 ½”x8 ½” piece to take home! This workshop has a $100 fee, and includes a student kit full of tools and glass to keep. A waiver must be signed, and Band-aids will be provided. This class is FULL.
    Contact: fearandtrust@yahoo.com

    Panelists: Leia Powell

    See more details


  • Glass Art, part 2 - FULL

    April 28, 2019  11:30 am - 12:30 pm


    Continuation of the Glass cutting class from previous time slot.

    Panelists: Leia Powell

    See more details


  • Viking Wire Weave

    April 28, 2019  1:00 pm - 2:00 pm


    Learn to knit weave a single wire into beautiful complicated deigns using simple tools. Based on a craft over 2000 years old, participants will have fun learning this technique that combines fiber art forms with metal. Please bring your own needle nose pliers or round-tip jeweler’s pliers. A few will be available for purchase. Sign up by registration, Limit 5 students, age 18+ welcome, material fee $15.00.

    Panelists: Aubree Pham

    See more details


  • 3D Printing

    April 28, 2019  2:30 pm - 3:30 pm


    We can all agree that our cosplay lives would be much simpler if we could just 3D print everything. You want a realistic helmet? Bam, done! You want a perfectly symmetrical design pattered on a shield? No problem! Dragon-scaled armor for your beloved pet to ride into battle with? That can be done, too! In this panel, we will discuss the theory behind and the basics of 3D design and printing to make your cosplay life easier.

    Panelists: Seth Lockhart

    See more details


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