Putting a small rolled up piece of paper towel deep in the toe of a guys boot is effective in camps known for lots of mice.

The chinese water torture is fun especially with a passed out drunk. Take a sock and put a few ice cubes in it and tack it to the ceiling above the guys head. Ice melts sock drips just slowly enough that it irritates the guy but doesnt wake him up for quite a while

Snipe hunts

raw egg dropped into the open mouth of a snorer

I'll remember more in a minute