ReActive Neon Paint. There has to be a reason this exists, right? $6.99.
Add a truly personalized touch to anything within range of UV-lighting using this unique neon paint. The paint is easy to apply thanks to an applicator brush built into the cap (like nail polish or white-out). Use it to mod your keyboard, mouse, or anything that is frequently introduced to UV-lighting to really show your inner geek! The paint goes on easily, leaving behind just a slight haze under normal lighting conditions. Kill the lights and fire up a blacklight however, and the fun begins.