Recycled PS6 plastic pendants

I was surfing the Inner-Webs when I stumbled upon this:

How to Make an Imitation Painted Glass Pendant from Food Packaging: 7 steps (with pictures) - wikiHow

Recycled Shrinky Dinks!  How cool is that?

For the purists:  Shrinky Dinks

Remember these things?  They were so cool!  I'd really like to try making something out of recycled PS6 plastic, only I try to never buy anything that comes in that stuff.  Hmm, maybe I can get some from someone else...