[Cecil4]

The comments below were my response to a question. Is this the way you handle this, within NFHS Rules?

Someone asked me about taped over jewelry. Jewelry is not allowed when playing, taped or not.
If there is tape and you don't know it is jewelry, you can't enforce the rule. But be honest with yourself.
I think it is usually obvious, like band-aids on both ear lobes and I think it is permissible to say "you can't play wearing jewelry" as a means of letting the player know without asking directly or the item being visible.

Side note - we don't say "take it off", just "you can't play wearing jewelry". Same goes for the bandannas.