Thanks Angel, point(s) taken(pun intended)

I use Dala Metal Craft Paint for the metallics and for the normal colours I have been using Heritage Acrylic (water based) paint for use on most surfaces. Bought it from DIY and PNA. Cant remember the name of the clay, but I get that from PNA too. It's very easy to model and use.
Garfield wrote: If you are using pottery clay and it has been cured/ baked in the right oven and glazed it should be fine to use in your T's enclosure. I'm sure there will be someone in your local area that gives pottery classes that will be able to help you in getting these very nice hides safe to put inside a T's cage.
Garfield, pottery or earthen clay would be the bullet-proof way to go, but I would need a Kiln for that, I guess. I have done some pottery and other art classes before with my sister when I was in school. She got an oven and a turntable for her birthday that she never used - I wish my dad kept it :S The PratliGlo im using lets nothing in and nothing out, it's odourless and is free of acetone, lead, methanol and pentachlorophenol and any other toxic shit - it allows no off-gassing and I'm sure it is safe to use. I put on about 3 layers.