Not for the first time someone is using Garbage as art. Even if this does not qualify as art it is, at least, a very weird souvenir.
The artist picks up bits of New York garbage (subway tickets, fast-food wrappers, broadway tickets) and arranges them in numbered, dated and signed plastic cubes (they dont smell!). Apparently over 700 cubes sold around the world.
Weird souvenir, but at the same time very apt. Stange Swedish souvenirs I have seen are canned/tinned air! and moose dung in a jar!