This light was inspired by the Warp Cells from the game "No Man's Sky". I thought it would make for a simple but pleasing light. It's made from three parts and is very easy to assemble. 
 
This light includes a top and bottom cap, center cell cylinder, an RGB Puck Light, RGB remote control, and three AAA Duracell Batteries for instant use with no hassle. I've tested this light myself. It lasted for about 17 hours on full power while underwater in an average household sink. This light is marked as being waterproof and I wanted to ensure it through my own test. The light was able to go for several more hours but would shut off randomly. These hours most likely will vary depending on power level, the type of battery used, and use time. No water ever entered the puck light during my test and was only shutting off from the batteries dying. The light stands just over 10.5 inches tall.