I am a solar light-a-holic! I love them, and it's hard for me to leave Menards without buying at least one!
I have a set of 3 underwater lights under my waterfall outlet into the pond. I just bought 4 more individual underwater lights, but I'm pretty sure I can connect them one to the other, or at least that's my hope! Then just one transformer and eye. I want to put them along the water falling from the top to the bottom of the waterfall, and use the blue lenses. Usually if you buy the kits, they come with yellow, blue and maybe red lenses to put on them if you don't want the bright white. Someone else had them on the waterfall under each area when the water dropped to the next rocks, and in blue, and it looked really great. I got mine half price at Menards yesterday, don't have them put together yet, though.
I agree, I want to see some of those light lit up at night, especially the ones in the pond, and that floating fountain! How cool!