I like the idea

There was a cosplay dance competition at Otakuthon called the "Ceremonies' Dance Competition". The winners would get to perform at Opening Ceremonies and the runner-ups would perform at Closing Ceremonies. For all other entries and interested attendees, there was the Cosplay Dance Off that occurred on the Sunday of the convention.

This competition started off in 2008 as the "Lucky Star Dance" competition, and became a cosplay-themed dance competition from 2009 to 2011. Due to receiving only a couple of entries in 2011, the competition, as well as Cosplay Dance Off, was discontinued from 2012 onwards.