I need two tiny gears

[curious aardvark]

bear in mind you can always stick a little glue on the shaft and let it dry to give a tighter fit.

the larger gear - a whole 10mm !
That's huge :-)

I can try for a 0.5mm hole - I suspect it'll just make it easier to see where to drill.

how about this:

10tooth10mmgear.jpg

Dunno if the gaps between teeth would be wide enough, could always drop it down to 9 teeth.
These are all made with the gear script I posted - so you could always mess about with it yourself :-)

10teethgear_543x600.jpg

The two mesh quite well.

10and7gear_800x600.jpg

The little one might need a wee tweak to give it longer teeth/arms.