Is there a business in your town, which you are 100% sure is a front?

When I lived in Daytona a shop opened up that sold nothing but Super-Whippers - $1 plastic whisks. They had two display trees in the front windows, one with black whisks and one with white whisks. They were never open and there was a hand-written sign on the door that said "Closed. If you want a Super-Whipper, they have some at the nail salon next door." The store was in a strip mall less than 200 ft. from three dollar stores and a Publix, all of which sold plastic whisks.

Pretty sure it was a front lol.