Every August for the past 25 years, the town of Brooklet has gone a little nutty in the name of fundraising — and just plain fun. Saturday marks the 25th anniversary of the popular festival, which features a parade, 5K run, slow tractor race, kiddie rides and peanuts prepared in every way imaginable. This year, a vendor will offer something new — peanut gumbo — said City Councilman Randy Newman, the Brooklet Community Development Authority chairman.