There are some hilarious shirts out there that insinuate sexual connotations involved with certain occupational tasks. For instance, "Bus drivers do it in transit," and "Dentists do it orally" - Check them out here. Anyhow, here are a few No Mustard Only originals:
Fisherman do it in a boat
Barbers like it hairy
Trapeze people do it in the air
Investors do it "on the floor"
Construction workers do it with a guy jacking his hammer in the corner
Lawyers do it with a cock ring
Engineers do it up the ass
Doctors do it with an octopus present
Engineers do it up the ass
Doctors do it with an octopus present
Tiger Woods does it with 18 holes a day
Butchers do it with their wives, if their wives take a shower first
Gelato store owners do it using tantric methods, like Sting
Teachers do it with a Dr. Seuss book between their but cheeks
Actors do it and never wear condoms!
Actors do it and never wear condoms!
Popes do it seldom