Really funny (at least to me).....
Where I live (Pueblo, CO), the guy who owns and operates a few beat up and ratty looking ice cream trucks also owns an extremely seedy porn shop and "adult arcade" - complete with all of the signs and explicit descriptions. So, when the trucks aren't in operation they're parked smack dab in front of the porn shop.
You have an ice cream truck with bears and rainbows painted on it right in front of a sign "fetish videos, buy one get one free". I don't know why, but that really cracks me up.