I would suggest having your DD try on a lot of different helmets to find one that she likes, but be careful as most TB and HS teams provide matching helmets for their players. If you are handy with a screwdriver and maybe a drill, you can change out the facemask on most helmets to one your DD likes.
Lots of good advice here and it looks like I'll try to go the mod route since a helmet change is not in the cards org wise, and not sure if it's possible to find a retro/universal mask kit.
Now...How to make it as factory looking as possible so it's not flagged by one of the associations.