It might, but it would get tangled in the wigs we use, since we do a lot of jumping and dancing in our routines. XD I have to think about how sturdy and also, if necessary, disposable a propr can be when making it!
Snaps would add stress to the ends of the necklace and eventually twist and rip it from being pulled apart over and over. Ribbons are really the best way to go because they're just there to make sure the necklace doesn't fall off while jumping or twirling. The necklaces actually stay on by themselves! The ribbon is just insurance