Instructables

Mario Kart Blue Shell Hat

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Picture of Mario Kart Blue Shell Hat
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All of my college suite-mates are obsessed with Mario Kart, so I made them this hat for christmas. Even though this tutorial covers how to make your own Blue Shell hat, you could easily swap the blue fleece for red or green to make the Red or Green Shells, or even use the basic construction style to make a Mushroom hat! (if you do, please sent me pics! I'd love to see that).
This project took me about 16-18 hours over the course of 4 days.

Materials:
  • White, blue, and black thread
  • 1 yard each of White, blue, and back fleece or felt (I used fleece)
  • A fiber-based filler (can be found at craft stores)
  • 1" elastic band
Tools:
  • Sewing machine
  • Pins 
  • Needle
  • Scissors
  • Pen or Sharpie
  • Measuring tape
  • Time and patience

NOTE: Almost all of the sewing in this project is done with a sewing machine using a straight stitch. When it's absolutely essential to hand sew, I explicitly say so, but in all other places where I just say "sew" you can assume that means on the machine, with a straight stitch, making sure to add several leading and tailing stitches so your whole seam doesn't unravel. If you dont have a machine, I will say it is possible to do this project completely by hand, but it may take you several years. 
 
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rajokamari made it!1 month ago

I used fabric paint for the black lines on the top of the shell. The first pictures don't show it's underbelly well cause the top was heavy and pushed it down. One was a first place prize for Mario Kart 8 party and the other is for me to keep :)

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Sam DeRose (author)  rajokamari4 days ago

Hey awesome! Thanks for sharing pictures!

rajokamari2 months ago

I'm working on a blue shell. It won't be a hat but a full shell with the underbelly part. I'm using your template for the top of the shell though. Thanks for your instructions and desire to make a blue shell hat.
What are the angles for the spiky cones? It said there is a template but the last picture I see is the hexagons. Then under the making the cones section there isn't one to print. I'm just trying to go off your lined paper photo. Maybe someone else will have the same question though and look through the comments. I will post a picture of my completed project when I am done with it.

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

Sam DeRose (author)  rajokamari2 months ago

Awesome! I'm looking forward to seeing a pic of it once it's done.

Unfortunately I no longer have the cone template, but if I recall correctly the height was about 1 inch and so was the diameter. The best way to make the cones would be to use a compass to draw a circle with a radius of about 1.3 inches onto a sheet of paper, cut out the circle, slit one radius, fold it into a cone, and adjust accordingly until the diameter is roughly 1 inch. Then you can use that piece of paper as a template for the fabric.

I hope this helps! Good luck :)

spongebop1258 months ago
I'm using your template for the hexagons so what should I do about the triangles?
Sam DeRose (author)  spongebop1258 months ago
Once you've stitched all the hexagons together, sort of just guess at the spacing for the triangles, see what works best for your head size. If you have a smaller head, you can make the triangles narrower, and make them wider if you have a bigger head. Hope that helps!
Thanks
spongebop1258 months ago
After I fill in the hexagons with the stuffing should I hand sew the last opening or use the sewing machine?
Sam DeRose (author)  spongebop1258 months ago
Using the machine will be faster! (thats what I did)
Sammi114028 months ago
I love all of your instructables they are amazing:)
Sam DeRose (author)  Sammi114028 months ago
Thank you!
HollyMann1 year ago
Amazing
saosport1 year ago
well done I love it
Excellent work and excellent hat. I'm surprised your brother was willing to give such an awesome hat back after his modelling moment.
Nicely done!!! Thanks for sharing.
I want this as a bike helmet!
tokyo1011 year ago
omg me and my sister are huge fans im making one for me and her and her birthdays coming up soon so this is the perfect gift.
taransa1 year ago
Wowsa! That is super impressive :D Fantastic job :)
seamster1 year ago
Nice work, that's a good looking hat!
ecsaul231 year ago
Very impressive, the planning and design and execution and the instructions. Very Nice