Not counting the things that looked like mushed M&M's or maybe some cushion-dried salsa chunks, the best I've ever done is a couple of hard-shell taco divots, a remote control for an oscillating fan, enough unpopped popcorn kernels for a hamster's tea break, a ripped bus transfer, half a poker chip, a pizza crust that could double as a drywall hammer, two wallet-pocket buttons, the keeper-part of ticket stub for a 1993 charity auction, and a dollar-seventeen in change.
Talk about being outclassed. Three roommates in northern New York state found $40,000 in their couch. The one they bought. Second-hand. For twenty bucks.
It was a major oops. The daughter sold it, when her mom was in the hospital for a surgery. But, it all got straightened out. The roommates tracked down the original owner somehow, maybe through the charity shop that had sold them the couch, and then, the original owner and the original cash were all restored to original condition. And they all lived originally, and happily, ever after.
Yes: Good works were done, a smidge of confidence was restored to the bucket of human nature, and the roommates received a thousand bucks for their effort -- a profit of $980, one could say, providing one wanted to focus on the upsides here.