This is my final project in FFF, and its made from solvie. Anyone who actually reads this thing with any kind of frequency will recognize the part around my face. Its my last project, and I made a coat to go with it. Its a collar/hood type of thing, made again entirely out of thread.
Solvie is plastic made of glue to make a plastic sheet. It was originally created to launder soiled linens so you could throw the whole bag into the washing machine and it would dissolve. If you sew into it and dissolve it, you can make textiles with it.
Here it is