For those of you who use Art Clay Silver here's a "heads up". There is a massive 35% price increase due to be implemented on the 8th April.
You can see confirmation of this on silverclay.co.uk (one of the main UK distributors). The good news is that if you buy clay for them before 8th April they will sell it you at the current price (even if out of stock).
Increases are due to the fluctuation in the dollar rate (which Silver is set in) and price increases from Aida (the manufacturer). It's not that surprising really, they haven't had a big increase in two years but still a bit of a blow if you make a lot in silver clay.
So go and stock up now (I did) :)