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Customizable DIY Shrink Plastic Keychains (In Under 10 Minutes)

This is for you if you are looking for a super-cute and easy craft that you can customize. Learn to make these adorable shrink plastic keychains in less than 10 minutes!

diy shrink plastic keychains on white table.

The best part about these handmade keychains is that you can make the doodles as detailed or as simple as possible. Our couple keychain is a cute way to create a custom gift for someone you love.

Supplies You’ll Need

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  • Keychain
  • Scissors
  • Plastic Shrink Film (Clear of Frosted)
  • Drawing Materials (colored pencils, permanent markers)
  • Hole Punch
  • Tassel (Optional)
  • Parchment Paper
  • Baking Sheet
  • Clear Coat (Mod Podge or Resin)
  • Picture

*Our examples used frosted Shrink plastic.

plastic shrink film, colored pencils, permanent markers, keychains and tassels on table.

DIY Plastic Keychain Tutorial

If you use permanent markers, clear Shrink plastic will work well. If you are adding color, we recommend using frosted plastic.

Before You Begin

Preheat your oven to 325 degrees Fahrenheit.

collage of process shots used to make a plastic shrink keychain.

Step 1: Draw Your Design

To add color, you can use permanent markers, acrylic paint or colored pencils on the rougher side of the shrink dink film.

Step 2: Cut it out.

Be as precise as you want when cutting out your shrink plastic. Super skinny or small details may not work well because they can curl and stick when melting.

Step 3: Punch a hole.

Make sure you leave enough space on the edge when punching your hole.

Step 4: Melt Your Shrinky Dink

  1. Lay your shrink plastic flat on a parchment paper-lined cookie sheet.
  2. Bake at 325 degrees F for 1 to 3 minutes. 
  3. You will see the plastic curl and twist as it heats up.
  4. Wait 30 seconds after the last shrink plastic is lying flat.
  5. Remove the cookie sheet from the oven.
  6. Let the plastic fully cool.
baking a plastic shrink drawing in an oven.

Step 5: Add Protective Coat

You can use Mod Podge or even craft resin to coat your plastic keychain. We added glitter Mod Podge to the ones where the paint was applied a little too thickly.

plastic DIY keychain of rainbow done by a kid.

Step 6: Put Your Keychain Together

Add your shrinky plastic charm, extra jump rings and a tassel charm to complete the keychain.

hand holding a couple DIY keychain shrinky plastic.

Shrink Plastic FAQs

Colored pencils, permanent or alcohol-based markers, and acrylic paint are great choices to add color to plastic shrink film.

Adding extra jump rings with extra charms, beads, small friendship bracelets, and other small accessories can all complement your DIY keychain.

Yes, you can print images on this plastic film meant to be used on an inkjet printer. For best results, make sure to add a protective coat before finishing.

If you are working with frosted film, then you want to color on the rough side.

Tips

  • Watch your shrinking plastic closely so that you do not overcook it.
  • If your shrink plastic curls and gets stuck, carefully use tweezers to pull it apart. You need to do this while the plastic is hot.
  • Experiment with adding color by using different materials or supplies. Our favorites are regular permanent markers and this brand of colored pencils.
  • If you are using paint, applying it in thin layers will work best.
DIY plastic keychains on white table.

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DIY Plastic Shrink Keychains

Learn how to make customizable shrink plastic keychains in your oven.
Print Tutorial
Prep:2 minutes
Creating:5 minutes
Total Time:7 minutes

Equipment

  • Scissors
  • Hole Punch
  • Baking Sheet
  • Oven or Toaster Oven

Supplies

Instructions

  • Preheat your oven to 325 degrees Fahrenheit.
  • Draw your design with permanent markers, acrylic paint or colored pencils on the rougher side of the shrink dink film.
  • Cut out your drawing. Be as precise as you want when cutting out your shrink.
  • Use a hand held hole puncher to add a hole.
  • Lay your shrink plastic flat on a parchment paper lined cookie sheet.
  • Bake at 325 degrees F for 1 to 3 minutes.
  • You will see the plastic curl and twist as it heats up.
  • Wait 30 seconds after the last shrink plastic is lying flat.
  • Remove the cookie sheet from the oven.
  • Let the plastic fully cool.
  • Once plastic is cool, you can add a protective clear coat.
  • Let dry.
  • Add jump rings, keychains or tassles to your DIY keychain.

Notes

  • Super skinny or small details may not work well as they could curl and stick when melting.
  • If your shrink plastic curls and gets stuck, carefully use tweezers to pull it apart. You need to do this while the plastic is hot.
Author: Erin
Cost: under $5

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