To become a smash success in the Minnesota Fringe Festival, you first need a strong dash of luck. This year, a record 397 proposals jockeyed for 169 performance slots — all chosen by lottery. 3-Minute Egg met a handful of hopefuls who were among the scores of people who turned Wednesday’s drawing into a party at Bedlam Theater. The 2010 Fringe runs August 5-15.