When entertaining the idea of a running costume make sure you think about the comfort of it while running the distance of the race. I usually wear a little something even if it is just a Team Sparkle skirt for runDisney races. I made the mistake of asking my 2 year old what I should dress up as for the Disneyland Half Marathon 2012. She told me Rapunzel, so of course since I’m a half crazy mama I did it and wore very heavy hair and a lizard on my arm. My daughter LOVED it though so it was worth it. Always test your costumes before you wear them for a race. Take a test run in them to make sure they stay put and there is no chaffing. My daughter has now told me I should dress as Alice In Wonderland for my next race. I am going to try doing a practice run in a blonde whig so I can get an idea if it is possible for me in a race. I would love to hear about costumes that my fellow half crazy mamas have worn. Happy running!