More suggestions can be found from the deathmatch generator at the Wrestlewhine parody site from back in the day. It's just HERE!
My first three clicks of the random button turned up :
Knitting needle, spider web, door-to-door salesman death match.
Barbed wire, really cold stones, expoding animal death match.
Thumb tack, splinters in a pile, pneumatic staplegun death match.