Scratch-off feature for stickers, cards, posters, etc.

Scratch off stickers either to put over existing photo to scratch off(like lottery ticket) or with photo/design on sticker part with material on top to scratch off(the dream) would be my hope for a future design.

Adding the option the have custom scratch offs portions in your artwork. Similar to having “starch offs” as a material

two layer sticker. top print can be scratched off to reveal under graphic. Example, poo emoji then scratch to reveal Trump.

Sell cards with a defined area of that grey stuff on "Scratch to win" tickets. Maybe also stickers.