Invent a fictional sport. Give it a scheme and a name. Perhaps it is a lighthearted tussle sort of game, or perhaps a gladiator's bloody gamble.
Feel free to post a line or two here in the comments section. (While you're at it, go ahead and write a novel to go with it.)
Inspired by Jay's magnetic poem...
A bit of play with Magnetic Poetry is sure to produce strange and thought-provoking results.