The concept: a wall sticker shop laid out like a small store. Walk the aisles, fill a basket, and put a whole wall together from sheets and sets.
Start shoppingBrowse the setsSmall sheets for corners, sets for a shelf wall, one large piece for the wall that needs it.
Each pack would list its footprint, so the basket can add up the wall it covers.
A shop like this would say plainly how each sticker removes, and on which paint it is meant to be used.
The mart is a sample. The domain is the real thing on offer.