Any tips on producing silicon moulds?

[TGN-Grant]

I've just been reading the tutorial on making the carnivorous scarabs (that may be a bad translation by me) terrain piece and I thought I might like to try it out sometime. The problem is that I don't have the first idea about how to create a silicon mould, does anyone have any tips/links?

I'd also need to get hold of the materials (silicon for the mould and some clear resin to pour into it), anyone know of any good UK based retailers for this type of thing?

[Bork]

contact greenstuff_gav on ukcord mate i know he does a fair bit of casting. i think hirst arts site does a pretty detailed step by step to making them too.