Ideas of questionable quality

[BadShot]

put a wet floor sign in every pool

This gives me an idea, a traitor item that looks like a wet floor sign but it makes nearby tiles slippery similar to the lube grenades but without the acid.

It stays slippery so long as the sign is there and can be picked up and moved

i am not sure if u are joking but thats already an item 

Oh shit it is isnt it, though it's only 1 tile isnt it?

Extend the range