Yes, I have three types.
One type is made by Malibu and is sold at Home Depot. In my opinion, they are junk. The hard plastic containing the solar cells and electronics will only last about 30-60 days in the sun. I bought a dozen of these over a two year period and they have all failed in the exact same way. Home Depot has been good about replacing them but the new ones fail very quickly. These are the ones that blend/cycle through 6-8 different colors.
I also have a different type that I found in a pool supply catalog. These flash different colors as contrasted to the ones listed above that blend from color to color. These have lasted 4+ years. I replace the batteries with NiMh once per year. I just sit them on the pool deck during the winter months and they continue to operate.
I have some home made ones using Jiff Peanut butter jars and some home cooked electronics. They use the solar cells from the failed Malibu lights listed above and a DC to DC converter to drive a Micro Chip microcontroller, which then drives three mosfets, that control the red, green and blue leds. These work best of all, but they look a bit "funky" in the plastic peanut butter jars.
Gene