I'd love to make a custom video along these lines, with contestant and host:
Contestant: cute, clean shaven, aged somewhere between 18 and 30.
Clothes: plain t-shirt, jeans or track pants, wearing regular boots/sneakers without socks.

Contestant comes and sits inside gunge tank.

Quick intro, establish he's never been messy before.

Forefits revealed: each question wrong, he progresses along list. Questions are gunge/slime related. All gunge/slime is either green or blue.

1. Left shoe off
2. Right shoe off (shows barefeet to camera)
3. Left foot put on welly boot filled to brim with slime
4. Right foot put on welly boot filled to brim with slime
5. Steps out of tank, lays on back, lifts legs into air so slime filled boots half empty down his legs. Sits back into tank.
6. Large squeeze bottle (2l/64oz) filled with slime inserted down front of pants/into undies. Contents squeezed into pants.
7. Mega slopping from gunge tank.

End of game. Removes his wellies, and walks out of gunge tank barefoot.