It's a bit similar to the ones worn by race horses. However in this circumstance it is worn by Neatorama caption contest judges. When it is time to make a decision the editor of Neatorama simply tugs on the reigns attached to the bit to let the judges know it is time to make a decision. It is a much simpler means of communicating.

Charlie Bownson, Large, Gray

It's Finn MacCool's back scratcher.

Charlie Brownson, Gray, Large

Ok, so it's bigger than a breadbox. So I know what it's not...it's not a breadbox. Is it Steve Allen's coffin?

Charlie Brownson Large Gray