So I had a friend tell me about this Mushroom Rally thing. It's basically Mario Kart brought to life on a go-kart track. They provide the costumes and on-site activities and at least one go-kart race with the winners potentially trekking to Las Vegas for the final 'big winners' race. Unfortunately, this race isn't coming to New England any time soon that I can see - so if you want to participate, the closest option for us is Cincinnati, OH. Check out the full list of venues and race details here .