Week 1, I had a game where a player got grabbed by a neck gaiter. It kind of played a mind trick on me though, it LOOKED like a facemask, until he pulled it completely away from him. It was roughly where hands would be for a facemask call. Coach from across the field was screaming for a facemask, but unless his facemask was made of gumby-like rubber and would stretch 6 inches, I didn't have a flag for it.