I use old film from hospital to make templates for patterns for hand quilting. Used to have a relative that would get the film from hospital for me. Have lots, probably enough to last my livetime.

I bought one from them and it is my favorite template. Well worth the money for me! I've used it a lot. Another thought about template plastic-{ I may have learned it on here} I use the plastic cutting mats from the $ store. There are 2 in a package. They're great. Enjoy.