In my opinion, the Happy Fish Speakers don't actually look anything like fish--more like trilobites turned on their side. But I digress. These inexpensive ($16) USB-powered speakers, sold by Hong Kong manufacturer Brando (also known for the Wii Sports Pack), contain LEDs that will cycle through a range of colors. We've seen plenty of animal-shaped speakers, from pigs to my beloved penguins, but these are a tad more abstract. Kind of late-'90s-iMac-ish, actually.
Personally, I think it could grow a tad annoying to have something like this flashing its multicolored lights next to my computer all the time (check out the animation on the product page--think flashy rather than soothing, laser tag rather than Nabaztag), but on the other hand, it could have a bright future as a party gadget. Never underestimate the power of party gadgets.