Sticker cutting and Laser module?

The cut guide says that SN2 can cut stickers. I want to create black glossy stickers appropriate for an outside car window. Vinyl appears toxic. Everything else seems to be available only in white. I am only interested in gloss black sticker stock. 8.5"x11" would be great but i am open minded.

Which sticker materials can the SN2 cut safely?

Cheers!