Behold the glory that is an 16-person all Bill & Ted's Excellent Adventure creation (with a bit of Bogus Journey thrown in there as well). They even remembered the Princesses! This is possibly the most wildly appealing and astoundingly excellent group costume we've ever seen. Then again, we're die-hard WYLD STALLYNS fans.
More information and images at Intense Individuals.
Thanks for the tip, Dave!