Tried working with clay again. I use the Fimo polymer clay. I wouldn't say difficult to use, more awkward than anything, especially for pendants trying to attach the chain etc with a pliers without damaging the clay.
I did damage one of the earrings when putting on the attachment. Just ripped the hole in it. Just added more clay over it and popped it in the oven again for 8 minutes. Here are some pictures of them anyway.
(Everything handmade (obviously not the earring attachment) and handpainted)