Every winter, crowds of idiots flock to Folly and Sullivan’s to partake in the island’s respective polar bear plunges. This spring, we’ll get to see that same kind of wacko emerge from the woodwork, albeit for a different reason. Mellow Mushroom Avondale will be celebrating their first year of business with a plunge of their own — into pizza. Eighty audacious participants, donning goggles, aprons, and gloves, will dig their way through 100 feet of saucy pizza in search of tokens that have been baked throughout the dough. After three minutes of marinara flying, two lucky plungers with the most tokens will be awarded free pizza for a year. Prizes will also be given to the best-dressed contestant. Drink and food specials will be served, and a DJ will spin until late in the night.