I have a lath but the rest of the parts are wood plastic or found.
I got the LED's here: www.superbrightleds.com/
mine are the Model E27-W24 Narrow Angle
Getting it all to fit was a hard. There is not that much space
in the dome.
I used AC motors because they are quite and my R2 doesn't
roll,
so 110V is easy just plug him in
I cut the fiber optics to length and taped the end so they'd
fit into the light fixtures.
Click the picture to see how I made the fiber optic
units.