Thanks for the tips guys. It appears we have overcome the mouthpiece issue. Yes I had bought the youth size, several of them actually. Just this morning I cut it down a little bit more, helped him understand better how to put it in and take it out and all appears to be well. We will see come practice/game time. Last two games he didn't play because he wouldn't wear it, hopefully today he will and will get to have some fun with his team. MVP -if you want to send me a private message about why kids 4 and 5 shouldn't play flag football that is fine. I have followed a lot of your threads and value your opinion. From what I can tell so far, the kids are learning a little bit about football and having a lot of fun. There is a very small amount of contact, and that is only when they get tangled up trying to pull a flag, and I have only seen that a couple times.