But you can't have a rainbow going into it, Shirley?
Either way, I do like prisms.
( Dekionplexis VII MKULTRA COOOOMBOOOO!, Thu 20 Dec 2007, 22:22, archived)

you could set up lots of different coloured lights
and combine them into one
( Bloop falafelly versatile, Thu 20 Dec 2007, 22:23, archived)

Ok, NOW it makes sense.
Pheeew.

Ahhah, tis amusing!
( Dekionplexis VII MKULTRA COOOOMBOOOO!, Thu 20 Dec 2007, 22:24, archived)