Simple glow marker for camping, zipper pull, keychain, rope marker, etc. Made with glow powder mixed with clear epoxy, no glow filament. I used (glow inc v10 ultragreen powder). The image with 2 markers shows difference between standard cheap powders and v10.
http://glow.glowinc.com v10 powder, higher micron size the brighter.
Always take caution with any powders, use gloves and a mask, and build over a area easily cleanable. The smaller the particle size the more difficult to wash off and the easier it will penetrate surfaces. In general you don't want to inhale or eat it, or allow pets to get access where they could eat, or ingest it.
Updated - dual color, slightly different form.