True story:
The guy who founded the ancestor to our radio station used to do video shows on Sunday nights at a local restaurant. One night a power resistor in his video projector blew. Sunday night, he's S.O.L. on finding a parts store.
What to do? He walks into the kitchen of the restaurant, asks for a carrot, sticks the probes of his VOM in the carrot. Moves the probes around until he finds locations where the resistance matches the value of the resistor that blew. He attaches clip-leads to the probes, runs them into the video projector, and the show goes on.
Peace,
Paul