I'm trying to find a source of small spur gears:
Module 0.25 and Module 0.5, teeth counts from around 12 to 40. (yes, they are small!). Worm and wheel sets in 0.25 would be useful too.
I only need a small quantity of any individual size, so a maker who normally sells them by the ten-thousand isn't much help.
UK/EU supply desirable, though don't really care where - they can come airmail.
Any clues ? I've tried quite a few hours of Googling and come up with nothing useful.