Love that radioactive blue! FYI, that blue is the real color of radioactive glow in a water-cooled nuclear reactor. It is always depicted as green on TV and in the movies, but it is exactly this shade of neon blue in water.
I too liked the color and thought it was fascinating so I bought one...err...two.
I also have the green one--not that I'm a fan of green, but when I was a kid, my dad bought me a game called 'Green Ghost.' It had playing pieces that glowed in the dark with that greenish color. The green one reminds me of the fun times with that game.
I use one of these winders with a Black & Decker cordless driver for my string changes. At least I don't dread doing string changes anymore.