Kezuroukai (a play on words meaning “let’s shave, shall we?” and “Wood Planing Competition”) is held every year in a different region of Japan. Wood shaving enthusiasts from all over the country gather in an effort to beat the next guy in getting the thinnest wood shavings possible. I imagine these are some of the best artisans and craftspeople in the world. In some cases they are able to get the wood down to 9 microns thick — according to Kottke that is one-thousandth of a millimeter, less than 1/10th of the thickness of a piece of human hair.
This is totally unrelated but in the random competition category, it reminds me of extreme ironing.