Yeah, that would help, wouldn't it! I'm using the Winsor and Newton Artisan range, which, as far as I know, are the only ones on the market. I got mine here:
http://www.artsupplies.co.uk/
for great prices and great service. The paints themselves aren't cheap, but they'll last virtually forever, a little goes a very long way indeed. I'll edit the post with some pics of the unsullied tanks shortly.
Bryn - You're too kind :blush_mini: I'll be interested to see how you get on, I take it you'll be tapping Pixie up for discount supplies...
Jon - The black ones are a different kettle of fish, with the dirt slightly less noticeable. I liked what you've done with yours (gave you a +1 for them )