My good friend is getting married and I'm helping her friend plan the bachelorette party. We wanted to do the regular bar thing, but the bride's little sister (who is also in the WP) is only 20. What would be some fun things to do that don't involve bars? I've already looked and the Detroit Tiger's aren't playing so that rules out a sporting event. I know we could do the typical spa-day but I was hoping to come up with an original idea. Any thoughts?