HI!
We had ours made a 3 weeks ago in the DTD christmas shop. They engraved the names for free. Mine was Mickey, DD9 was Chip n Dale, and DD13 was Tinker bell.
I wore mine maybe 3 times and nothing really special happened except for Mary Poppins dedicating her autograph to me.....But they are really cute and they can be transformed into magnets or keychains....Price: 6:00$
Aside from the x-mas shop, they were at World of Disney and a few other places I don't remember specifically....