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DIY Shrinky Dinks.

By: Chrisjob Aug 08, 2007

My parents are both science teachers: which means they always ruined the secrets to magic tricks, they forced me to identify every tree by leaf and bark type, and we always created our own versions of ‘science-y’ toys. We used to cook our Easy-Bake Oven meals with foil and a light bulb, and created our own slime with cornstarch and food coloring.
    And, when we wanted our own shrinkable art, did we get the sweet pre-printed HeMan or Strawberry Shortcake sheets? Nope. We freehanded it on blank sheets of plastic, and copying the designs from coloring books. (Luckily, neither of my parents could draw, or else we might have had hand drawn versions of those, too.)

    The process is simple. I don’t know what kind of Shrinky Dinks are available, if any, but I’ll always be able to make some on my own… I guess my parents actually taught me something. Nuts.

Ingredients:
    Clean #6 Plastic
    Permanent Markers
    Scissors
    Aluminum Foil
    Oven and Tongs or Oven Mitt

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 1. Obtain a piece of #6 plastic (polystyrene). Most clear containers at salad bars, delis, and grocery stores will work. Just flip it over and look for a “6” inside the recycling arrows. If you ask nicely, they’ll usually give you a fresh one.

2. Cut any excess plastic away to make a flat sheet (use both the top and the bottom), and recycle the excess.
3. Draw or write your desired image or text on your plastic canvas using permanent markers. The total image will shrink to about a third of its original size, and five or six times its original thickness. (My parents, of course, would make us measure before and after, and figure how much it had changed.)

4. Pre-heat your oven to 350°, and place a rack in the lowest position. Create a “tray” out of the aluminum foil by bending up the sides. Technically, you could cover a baking sheet with foil, but  the thinner surface allows for more direct heat and quicker shrinking.
5. Place your art in the tray, then use the tongs or an oven mitt to place the foil on the bottom rack.
6. For the first minute your art will curl up all crazy-like, but soon, it will flatten itself out. If you have an oven door through which you can see, then just keep an eye on it. If your door is solid, open it just slightly (as you would do when broiling) after 90 seconds. Total time for a large piece (5-6” starting size) will be about 3 1/2 minutes.

7. Using the tongs or oven mitt, remove the tray. At this point, it’s still plyable, so if you want to flatten it more, or add waves or bend the corners, do so CAREFULLY within the first ten seconds.
8. Now, you can do as you please. It’s still cut-able, sand-able, drill-able, glue-able, and plenty more. Attach it to jewelry, make a luggage label, or even a guitar pick!


Please include more application ideas in the comments below. Cheers.

 

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Comments

Your parents rock. Thanks to all of you!

I don't thinkmy message went through.  I wanted to comment that I remember when this craft began as a homemade art craft.  It was called "liver lids"; by using the clear plastic top that went on the plastic containers selling liver in the grocery stores.  I know that 'tells  my age'; but that's ok, too. Thanks for the details.

Love everything DIY. Have tried this before, following your tutorial, and it worked like magic. But today it didn't work, and I can't figure out why. Used the #6 plastic but it just melted. It's really weird....

This is wonderful! Thanks for sharing!

@ ronmaggi - heat it again and flatten it before it hardens 

Hi, I don't know if I commented the first time around but I posted a link to this on my blog in 2007 and have just TODAY, finally, used your instructions to make a trace of Chester A. Arthur (our 21st US president) on a flat piece of carry-out container for my husband.  It came out beautifully.  Thank you kindly for the instructions!

It is great but my 6inch picture came out to small. there got to be a better way of doing this.

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That is a fantasitic idea! Not only will it save me a few dollars on shrink plastic but it will also let me teach my children an important lesson about recycling. The lesson will show my offspring how easy and fun recycling can be. The most important thing that my lesson will teach them is why it is critical, to the health of our one and only planet, that they (continue to) recycle bottles, cans and that they expand on those materials.

 

I don't think that will work.  A "double layer" of plastic will just result in two shrunken pieces.  The won't melt together.

@Megan - I wonder if it would be ok to do a double layer of the plastic... like if you did your design, and then on top of it, add another blank piece of plastic to sort of box in the design.  I may have to try it.

 

Thanks to the OP for this page.  I'm really excited to give this a shot with my 5 year old.  She loves arts & crafts and we've been looking for a new and interesting craft to play with.

I love this craft!  Thanks for sharing....My 6 y/o granddaughters spend at least one afternoon a week with me......I never run out of ideasm  Thanks to the web!  We will be doing this one next week!

Too cool - thanks for sharing :)

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this is a great idea.  i'm wanting to make dog tags for our lab rescue group.  I found the project on Martha Stewart but the cost of Shrinky Dink material would make this very costly for our non-profit.  with this idea I will be able to make many tags with our phone number on it.  Many of our rescue dogs are escape artists, the tag helps alot! 

i find it alot cheaper and funer to us recycled plastic instead of the shrinky dink paper they sale at michels because its not only cheaper its also clearer instead of the ruff paper they give. thumbs up =]

You think you had it bad?  My dad was an engineer!  I distinctly remember putting a piece of 2x4 in a sink of water to see how much it would expand.  Good times.

LOL.

Thanks for the instructions.  I'm going to try this with the 2 year old this weekend.

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Wow, I am so glad there is another way other than buying the Shrinky-dink stuff from the store.  I am hoping not to have anything curl up, a little would be fine, but the entire project I have going on in my head, oh no!!  hehe.  I remember doing Shrinky-dink stuff as a kid.  Lots of fun I will enjoy with my children.  I just wonder.. it is better to do it yourself.. or to buy the actual product.. for the best results that is?  So glad I found this!

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Wow, thanks so much for this! I know I'm a little late in finding this, but I was planning to make some keychains for my anime club, anime wherever I looked I couldn't find a store selling Shrinky Dinks anywhere! Glad that I didn't waste the money on them when I could just do it like this at home! Thanks again!

LOVE THIS!  I forget isn't there a way to "save your favourites" on this site?  I love these ideas and would love to have them "at my fingertips" so to speak.

I've been playing around with the opaque foam-type #6 plastic as well, which obviously results in an opaque final piece.  It's harder to work with and greatly distorts, that is it shrinks much more in one direction than the other.  But if you take that into account and keep the pieces fairly small, it works.

Oh, and it doesn't flatten itself out as well as the clear plastic, so you'll have to flatten (or bend) it yourself while it's still hot.

umm..... could you use any other type plastic for this project?

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