All you guys - I appreciate all the positive comments, thanks. The artistic component of this project really must be attributed to the original designer.  I feel like I'm a good copier, though.

Splinter - I had some Wham-O frisbees as a kid (who hasn't?) and should have recognized that shape myself.  BTW, I've already ordered new LED.  The light is too stark in a dark room.  Going with 2700K like the Parasite lamp, which I know I like.

Ty - The engineer in me likes to improve things.  It's nice to be able to incorporate modern elements into a vintage design.   I'm pleased with the combination.