Weirdly enough when I googled on how to fix my toilet, I found this article with this tip on how to pit cherries. "Unfold a paper clip at its center, insert one hooked end into the top or bottom of the cherry. Once you feel the pit, lift it up and out." (http://www.houselogic.com/articles/what-would-macgyver-do-use-paper-clips-solve-common-home-repair-jams/)
I've heard of also hulling strawberries with a straw, but are there any other MacGyver style cooking tips that you use or know of?