Reminds me of 'Shrinky Dinks' from my childhood
HGTV Crafternoon: DIY Shrinky Dink Jewelry (http://blog.hgtv.com/design/2014/05/06/diy-shrinky-dink-jewelry-mothers-day-kids-craft/?soc=pinterest)
Hand drawn shrink plastic tiny stud bird birdhouse by ColorfulClay, $6.50
Blue whale illustration pin brooch hand drawn by ColorfulClay, $5.50
Fun hand drawn shrink plastic tiny hedgehog by ColorfulClay, $5.50
A good tutorial on making jewelry with Shrinky Dinks-btw, I get my Shrinky Dink stuff for free, via the berry & salad containers at my local grocery store!
6 DIY Tutorials for Creating Fun and Fluffy Cloud Jewelry. Use blue beads instead of chains.
Hedgehog dangle drop earrings black and white hand by ColorfulClay, $7.50
Idé til shrink plastic. Bear Gone Fishing Two Parts Pendant Necklace Plastique fou dingue DIY collier
Another Etsy shop selling shrinky dink jewelry. I think it's catching on...