I don't know about you guys, but every account I make always seem to get either all tooth halves or all loop halves. I think we should be able to purchase key halves in the slayer shop with the full crystal keys. They can be made half or 3/4 cost of the full key itself and allow us to use the keys!
I'm more interested in the drop rates, cause everyone in my group has so many more teeth halves lol. It would be nice to have a use for all the excess, I definitely support :)