Funny fake business idea

I wanna provide a service where I sell a PNG drawing of a duck I made (NOT NFT) and I only accept sand as currency. And you order the drawing of a duck by putting sand in a box with a red circle on top and leaving them on a table overnight for Yorky ClausO (the O is silent) to pick up.

It's harmless because you're not really buying anything, not even using real money, and it's so ridiculous that no one will believe it's a real service.

What do you guys think?