Wow Fab Foil - Purple (15 ratings) Purple Amethyst £2.50 Quantity: at £2.50 each Add To Basket Use Fab Foils to achieve stunning metallic effects on projects. Glamorous, and easy to use. For best results, use with WOW! Bonding Powder (sold separately). Each Fab Foil sheet measures 10 cm x 1 m.