- Material: plastic bags or bubble wrap
- Tools: iron and baking paper
- Place material between two sheets of baking paper.
- Iron single sheets as the shrinking is quite drastic and not really predictable (if material ruptures or holes are forming, try reducing the temperature).
- Fuse pre-ironed sheets together to create thicker, stronger material or extend the material dimensions.
- Optionally imprint their textures to the surface by using fabrics or perforated metal plates.
- Mostly polystyrene, "expanded polystyrene", short EPS
- Dissolvable in Acetone (but that's kinda nasty and not exactly healthy
- Topics in the forum:  
- Maybe heat and compression to make it smaller and shreddable?
- Disolvable in D-Limonene (Instructable)
Our shredder can't deal with PET, it's too tough. But we have been collecting quite a bit of them (those without deposit on them). So what could we do with those?
- There are special bottle cutters to cut PET bottles into strings
- Theo has one he can borrow us
- "THE" Bottle Cutter -> 
- DIY Links
- Bottom and Top remain -> What to do with them?
- Jewelry? 
- Research by the PP Team