There are cheap NBA snapbacks
The important factor to bear in mind about mounting any camera is stability. What makes Go Pro so attractive to quite a few cinematographers are the numerous mounts offered for it that fit the camera snugly on a helmet, car, surf board, or what have you. There will normally be some movement when attaching a camera to say a helmet, but together with the Go Pro helmet mount, you have minimized any residual movement. The only motion that may be left is the fact that on the helmet moving. Trying to mount a camera to a NFL snapbacks and expecting the stability of a helmet mount Go Pro or Contour camera just isn't quick or trivial. To start with a baseball cap is not rigid like a helmet, there is certainly flex built in to the cap even inside the beak. Adding an adapter may possibly make items worse. You might have to experiment. Contemplate ways to make the cap as rigid as a helmet and strategies to attach the camera so it moves using the cap with out any swaying or additional movement. For each style you believe will function you will need to produce test shots that cover the conditions with the actual production. I assume this could be carried out. But without having your camera or your cap in my hands I would not venture a guess on how you go about it. This can be definitely hands on experimental kludge-0-matic work. I've got a GoPro and filzilla is suitable, stability might be an problem. There's the head strap mount that may fit on your head, or helmet, or even NBA snapbacks, and it functions well. The chest mount performs somewhat greater, additional stable and it doesn't move about with your head (a great deal less complicated to watch). I'm positive you may get it to work decently together with the chest mount. You could possibly come across that, within this case, making use of it on a tripod or Gorillapod would be far better for stability.