A food truck in the Netherlands is turning cigarette butts into currency, offering poffertjes, drinks and fruit in exchange for collected litter. Since launching in 2022, WasteBar has appeared at more than 50 events and gathered over 500,000 cigarette butts while encouraging people to see waste as something that can be removed, valued and discussed.

WasteBar swaps litter for pancakes at Dutch festivals
THE GUARDIAN