Keep them. My gosh, its not like they are actually chucking a sharp metal sword or a loaded shootable rifle for God's sake. If the arguement was that little kids may see it and try to imitate it with real weapons, then I see two problems here. The little kid needs to be taken away from their family because the parents arent responsible enough to keep loaded guns and real swords out of the kids reach. And two, doesnt the military whirl guns around and shoot them in the air for show as well?