Magic Tricks

1st let me say this is a great product!I am excited to put this in my show in some form. I am thinking during my stand up parlour shows! I might do something with it with David Parr's Copycat.
However, I began practicing this effect with my own wedding ring and ran into a problem immediately.
My ring has magnetic properties. I think it has some meteorite or some such thing.
Anyway, this presents a problem but also reminds us magicians to do our homework. Now I think I need a PK ring to be able to check the rings I borrow for this effect, and if they are magnetic, I will say something like, "nice ring, (Hand it back) and look to someone else and say, ,may I look at yours!"
I do not want to give away the secret but this is pretty important info.