Made a few polymer clay pendants this weekend. I'm trying to mix the media a bit and include gemstones, metal backings and painting to help it not feel quite so clay-like.
What I found the most difficult was keeping the clay perfectly clean. All it takes is a tiny speck of another color getting onto the clay and it's really hard to remove.
Painting is also really difficult on such a small surface, so my brush strokes definitely aren't as even as I'd have liked. But overall, I'm pretty happy with the results.