Memory wire rings

[photobee.livejournal.com]

Once again I'm working on craft stuff for my dolls and I thought I'd buy some ring size memory wire to try to make some doll bracelets. (Rings quite often make good doll bracelets.) I've never worked with memory wire before and I'm finding it really kind of hard. It's a lot harder to make the little loops than I thought it would be and it keeps stretching and losing it's shape.

Can anyone offer me any advice or point me in the direction of some pointers?