Earwigs make up the insect order Dermaptera and are found throughout the Americas, Africa, Eurasia, Australia and New Zealand. With about 2,000 species in 12 families, they are one of the smaller insect orders.
Phosphorescent paint is commonly called glow-in-the-dark paint. It is made from phosphors such as silver-activated zinc sulfide or doped strontium aluminate, and typically glows a pale green to greenish-blue color.
Glow-in-the-dark filament: Both ABS and PLA plastic come in many colors, including several shades that glow in the dark. Graphene: A one-atom thick layer of graphite. Not yet a 3D printing material, but American and European science groups are trying to find a way to make it one.