One of the towns around here renames itself for this such holiday. I was reminissing with a coworker how she was driving into this town last year and it freaked the shit out of her. There was a city truck ahead of her that pulled over and out jumped 3 dudes dressed as leprochans. She had no clue this was a tradition to rename this city and here there were 3 dudes dressed up and changing the city sign. It was the funniest shit to hear and we both were laughing about it today.