I had the pleasure of attending a silver clay workshop with a handful of other crafty minxes at Pam Annesley's studio in Two Rocks, and I loved it! I wish I had done a little bit more research on what you can do with the clay beforehand, though, to maximise the time I could spend working on the clay instead of thinking and planning and wondering and second-guessing. Anyway, we had a blast and will definitely do it again some time.
