I make my own wine charms out of shinky dinks, swarovski crystals and other charms. I stamp the blank shrinky dink material, with things like cute characters for generalized charms to personalized charms with names stamped on them.
These are great for parties, and also for kids. My kids like to drink grape juice, water etc from wine glasses, and so do we. You can also put these charms on the pop top of soda cans to tell whose is whose, and coffee mugs too.
I cannot take credit for these wine charms pictured here, but they are the basic type of layout for my wine charms. I did not take pictures of mine (yet). Some have name tags, animals, bugs, etc...and some have silver charms instead of shrinky dinks.
I actually got the idea from Long Trout Winery, they have shinky dink charms of their fish logo they gave to us when we bought a case of wine. It did not have any beads on it, it was just the fish logo shrinky dink, but it was so cute, I had to make them.
And of course, you can put them on your MARGARITA glasses!