Super Shinking Plastic!

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Introduction: Super Shinking Plastic!

Never buy that Shrinky Dink crap, you can make your own, for free!

Step 1: What to Have

You will need:
Type 6 Plasic
A Sharpie
An Oven
Aluminum Foil
Cookie Sheet

Step 2: Cut the Plastic

Cut out the shape that you want for your plastic. If you want to, add a smiley face, some hair, whatever.

Step 3: Preheat the Oven

Preheat your oven to 350 degrees Fahrenheit.

Step 4: Prepare the Rest of the Materials

While the oven is preheating, cover the front of your cookie sheet with aluminum foil, shiney side up! Place your plastic creation on it and get ready for the next step.

Step 5: Place the Sheet in the Oven.

When the oven is finished preheating, place the cookie sheet in. Watch your plastic as it curls and "crumples" up. After the plastic has curled and flattened back out, take it out. The plastic will have shrunken!

Step 6: Enjoy!

Enjoy making your own shrunken plastic!

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86 Comments

What if there is just the "PS" on my plastic without the number? Does it work anyway?

hi, i dont have an over, tried it in the microwave but the plastic burnt. can anybody suggest the instructions for microwave

It won't work in a microwave because of the way a microwave works.
The oven works by heating the whole inside of the oven to an even temperature, which will heat all the components of the plastic relatively evenly and cause it to revert to its original shape (shrink) before it was heat formed the first time.
Microwaves work by causing the water molecules to gain energy essentially. It doesn't heat it evenly and won't cause the plastic to shrink at all.

how can I make something with a hole for a key ring? hole punch? will that whole still be there?

You have to do it beforehand or you run the risk of cracking the plastic. But I've found a hole punch is perfect!

Shrinky Dinks are not 'crap'! They are great -- you can draw on them with color pencils or markers; anyone have any luck with anything other than a Sharpie on No. 6 plastic?

you can sand it in two directions to make colored pencil stay.

Yeah, markers. Just like you said. Or a pen, or even paint. Possibilities are endless. Why pay?

Shrinky Dinks are crap 'cuz they cost like $5 a sheet when you can find your own plastic in your recycling bin!

Would this work for making very small pinholes? What would be a good source of dark opaque plastic? Perhaps a coffee-cup lid?

Thanks, G.