Each attendee at the birthday party got to decide if they wanted to be a Jedi (Team Yoda) or Sith Lord (Team Darth Vader). Based on their choice they received a white or black training uniform. After choosing a side the training began!
I made simple Jedi costumes out of fleece and then tied them with a felt belt. Since fleece does not fray, I was able to cut them quickly from a pattern with no sewing needed. You criss cross the flaps in front of the body and tie it in place with the belt. The kids had lots of fun picking sides and we had an inflatable Yoda and Darth Vader just in case they didn't see the movie.