What do you do when you order a million-zillion flip-flop ashtrays only to realize later that people smoke less cigarettes nowadays? You repurpose those ashtrays into French fry serving trays of course!
Ketchup goes into the toes and the fries collect nicely where the foot would go. Slide out a fry, dip it in a toe and it you have yourself a classic snack in classic flip flop form. Just be sure to clean out the ashtray before serving.