Some keychain thingies I made the other day... Lugia and Shadow Lugia, made out of polymer clay. The Shadow Lugia is glittery, while Lugia only has glittery blue parts. The marbles aren't quite smooth, as they're kind of old and have small nicks, but it doesn't look bad.
They're roughly 4 cm tall and 3 cm wide. They're kind of heavy, so I'm not really sure how well they actually would work as a keychain. They can be used as necklaces too though.
I'm actually willing to sell them if anyone's interested. I can also make other Pokemon or dragon marble thingies. It'd be about $7, £4,5 or €5 for one, not sure about postage yet.