When I was in jr high school, all the boys wanted those ninja throwing stars. You know, those stars the size of you hand with razor sharp tips you could buy at the flea market. Since you could not sell weapons to minors, the sellers drilled holes in the center & sold them as wall art. You were instructed to hang it on your wall by placing a nail through the center hole. Any 10 year old could buy wall art (that just happened to have razor sharp tips.) This made it legal to sell to minors.