Get a block of ice, and chip at it for drinks. Label it "The Fjords".
Robe shaped cookies? Gingerbread men with two heads and killer sunglasses?
Popcorn balls that are white, and labeled as cricket balls? I think a great game (if you had the space) would be a round or two of cricket. Trust me, trying to figure out the rules after a couple Pan Galactic Gargleblasters will be game enough.
The sushi is the best idea I've ever heard, complete with sign!