One of the artists at my studio makes beautiful jewelry out of them (http://www.alixandrabarron.com/). She let me have some of her scrap... now I use it for a number of different things.
Use PVA (white Glue) to adhere it to a block of wood so that it lays flat when you are cutting it. The PVA is water soluble and washes right off.
These are beautiful goggles. Thank you for the inspiration! If I get around to making a pair I'll post them here to show how they come out.