I wanted to make a working lamp from that nice model, but I didn't need the AC->DC transformer sucking watts even when it was away.
So I took the guts out of a sparkfun 9V DC converter and stretched the base to match.
I added some arrangements to the bottom help with shrinkage/warping. I don't know if they did or not.
I included a switch from RadioShack to the base as well so you can turn of the A/C power.
This is based around the Luxo Jr snap together lamp, except everyhting was scaled up by 30\% (or 1.3x or anything). The bottom panel is a little oversized and if you shave It using an exato friction holds it in.
I used an adafruit LED and some high wattage resistors that I hid inside the top.