[zapk]

OK so here's a new one.

Player 1: name the substance to be used.
Player 2: name the place where the mess goes (head, clothes, whatever you fancy).
Player 3: name the level of humiliation involved (does the loser have to share pictures/snapchats/videos with anyone).

The next player then decides who loses out of the three, and that loser has to gunge themselves accordingly. That player is also player 1 for the next round!

Let's see if this one works...