You may find some of one of those in Power Jack Motion's electric motor range as they have a couple of DC motors in it.
Nigel Lawson in the UK has them.
http://www.nigellawton009.com/6V6mmx10mmMicroMotors.html
He also has 6mm x 12mm.
Robert Beaty
The Laughing Hippie
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The CF-7...a waste of a perfectly good F-unit!
Then it comes to be that the soothing light at the
end of your tunnel, Was just a freight train coming
your way. -Metallica, No Leaf Clover
I been looking for a 6volts DC micro motors, that Rail flyer locomotive used in there traction motors. Can someone please, point the way, so i can try them for myself.