I'm somewhat acquainted with the German deposit system. While I don't know if littering decreased after it was implemented, I saw a lot of people leaving their bottles and cans in parks on purpose so bottle collectors can get them, as a kind of donation I guess? The deposit is just about a quarter though, not a dollar.
(Also I have 666 reputation right now, please don't ruin it)
(Also I have 666 reputation right now, please don't ruin it)