I keep waiting for Zubbles to be available. For my nieces and nephew. Honest. I personally would have no interest whatsoever in, say, filling a bubble machine with brightly colored bubbles and running it on the front porch. Anyway, the wikipedia entry now claims availability in 2008.
In the meantime, I came across a recipe to make your own pink and blue soap bubbles using pH indicators. You can also find bubbles that glow gold under black light. And a bubble machine to go with. There are even machines that'll blow smoke-filled bubbles.
But nothing yet that's brightly colored.
Follow-up: there's even a wind-powered bubble machine along with directions to make your own.