I recently made a card using tin foil which I embossed. It helped to create an interesting card. Use scissors to cut the tin foil and not your paper trimmer before embossing. I used Tombo Multi glue to stick it down.
Supplies used: Whisper White and Elegant Eggplant card stock, Perfect Pennants stamp set (133230), Banners Framelits Dies (132173) Soft Sky 1/2″ Seam Binding Ribbon (131210).