@Sekto Springs: Cheers, glad u like them!
I actually forgot to say the slig is not entirely clay- the body, face, arms etc. are, however the legs are made with lots of different things (hope this doesn't disappoint you!).
The ball section where the slig sits is clay, but the legs are pieces of aluminium tubing, plasticard (basically very thin plastic sheets cut to the right shape) and wire. I really wanted them to be accurate, and wasn't sure I could get the right effect trying to sculpt them with clay, so I searched through some bits and bobs to find stuff with a good smooth finish.
The knee pads are actually some washers filled in with clay, and the pipes coming from the mask are the plastic coating off some garden wire which I managed to pull off
The legs had to be pinned to the base for the finished model to stand up. Again, the barrel of the gun is aluminium tubing- Its all a pretty low-cost affair really; I'd say the actual materials cost per model is just a couple of quid (plus about 20 hours of work!
)