OK, I have found those too. They are about the only option I have found other than getting a reciever with the servos and ESC baked in that aren't more expensive than a brushless ESC. I have a ton of 5-6 Amp brushless ESCs and plenty of 902/1102-ish brushless motors from nano quads too but sometimes I'd rather just throw a simple brushed motor and press fit prop on.
Cheers!
LitterBug