Hello. I see its been awhile since this was posted in and was wondering if anyone came up with new ideas. We tried clip ons. They would forget to turn them in. we currently use printed stick on labels that we print each week BUT there's lots of problems with this too. They play with them, they stick them their mouths... we end up with multiple sets as not everyone is there each week. so just thought I'd see if I can revive this discussion? thanks!