This year, the world stone-skimming championship was marred by cheaters who used stones that were "suspiciously round." A handful of people vying to be the next world champion of stone-skimming were disqualified from the annual contest in Scotland after a cheating scandal, reports say. The tournament draws hundreds of competitors each year to the tiny, car-free island of Easdale, home to about 60 permanent residents who host the event. What we know:After the contest was over, organizers were alerted to potential cheating: some of the stones were "suspiciously round." A storied pastimeThe backstory:Stone-skimming was a local pastime in Easdale, CBC reports, which led to the first world championship in 1983.