Shrink Plastic Crafts

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One of my favorite craft materials lately is shrink plastic (a.k.a. Shrinky Dink), which is a type of clear plastic (#6 to be exact) that once heated, thickens and shrinks to approximately half of its original size. It is great for making personalized crafts and gifts since we could essentially draw or trace any design on it.

The Dumpling and I have turned our plastic trinkets into wind chimes, ornaments, accessories, name tags, and key chains, just to name a few.

Original (left) vs. shrunken (right)
A name tag for the Dumpling’s book bag.
An Easter-themed wind chime.

Materials

  • Shrink plastic sheet
  • Color pencils, permanent markers, or acrylic paint
  • Oven safe tray
  • Oven mittens
  • Hole punch (optional)
  • Clear nail polish (optional)

Draw or trace your image onto the smooth side of shrink plastic sheet with permanent marker. My sheets came pre-sanded on one side and smooth on the other, so check carefully. Size the images accordingly as they shrink to half of their original size once heated.

Sanded side (left) vs. smooth side (right)
Trace or draw on smooth side. I have a Q-tip dipped in rubbing alcohol ready on the side to wipe away small smudges or mistakes.

Color on the sanded side of the plastic. Flip the sheet over and color on the sanded side — the rougher surface makes it easier for the pigments to grab on. Coloring on this side also ensures that the color doesn’t cover the design outline.

Color on sanded side. The colors may look light, but they darken slightly once heated.

Cut along the outline. Be gentle as plastic can rip easily.

Punch hole(s) on where you want to string the shrink plastic.

Pre-heat oven to 175°C and then bake cutout for approximately 3-5 minutes in oven-safe tray. The funnest part of this activity is watching the plastic curl and then flatten into a miniature version of itself. The first time I did this, the cutout did not flatten properly — my guess was that I did not wait for the oven to pre-heat to the right temperature, so be patient!

The plastic curls and shrinks to approximately 50% of its original size in the oven!

Let cool and varnish with clear nail polish.

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