PrinceJ said: I like underwear, or a tuxedo (which can be cheaper than a suit to buy).

But also I have been getting into embarrassing costumes like a guy might have to wear at a stag party. So things like a mankini, schoolboy or schoolgirl outfit, maid dress, baby outfit, clown outfit etc.

My ideal is that two guys play a game and the loser is getting gunged but they also have to win a second challenge (which is genuine, not rigged) or they have to wear the embarrassing outfit for their gunging. But it would be tricky from a seller's PoV because some buyers would want to know the result of the challenge before they bought. And of course many models would not want to wear some of the outfits.

Amadeus said: First the general answers for male gunge content!
Outfit: lycra cycling gear
Mess combo: foam pies and natrosol
Scene: femdom, girl stays clean and dry and the guy gets the mess

However, you've fulfilled most of those fantasies Al, so specifically for you:
Outfit: white jockstrap, nothing else
Mess combo: baked beans, hummus, mayonnaise, other food gunge
Scene: you gunged by a man while a girl gives instructions on what he does to you

bsmithyst said: Like they've been grabbed off the street/from the audience.