That's so cool! I'm running a 5K in May called the Warrior Dash (benefits St. Jude's Childrens Hospital). They give us a Viking helmet and beer for running/climbing/slogging through an obstacle course, complete with enormous mud puddles, a river crossing, and a barbed-wire fence belly crawl. So, I expect to be just as covered in stuff at the end as the folks up above, but much less pretty colors!