Anyway, I've had this battery operated cordless Dremel for a good 10 to 15 years. Some time ago, I lost the battery pack. Don't ask me how. I have moved a lot though.
Instead of trashing the tool itself (and all it's accessories), I held onto it, thinking I might find the battery sooner or later.
I never did, but a few days ago I had the idea to skip the battery and turn it from a cordless into a corded Dremel, by hooking the motor to a spare locomotive power pack I have.
And it works! AH-hahahahaha!
Update January 2012: I've replaced the test cord above with one stolen from an old VHS camcorder that I had. The cord allowed the camcorder to be played directly off the car's 12V DC (the cigarette lighter in other words). Clipping off both ends gave me a convenient spiral cord that works really well. I had a couple of spade terminal connectors in my junk box too, making connection and disconnection really quick.