These ideas are all great ways to keep floor hockey a safer sport. I think mouth guards are a wonderful idea as far as protective gear is concerned, besides they come in a variety of colors and the students might even think they are cool. Therefore, I think teachers should enforce the use of them. Goggles are another fantastic idea for floor hockey. You never know when that puck or high stick is going directly toward the eyes.
Protection is prevention.
Penalties are a consequential factor that shows the students they are doing something illegal. Someone may get injured if a student keeps on high sticking. There are penalties in professional sports that fit the penalty, I believe they should have penalties in school sports as well, it is only fitting. I like the idea of having the tennis ball pieces in the wiffle ball. It is economical and sounds very effective.