False nails have been around a long time, but they’ve been mostly pretty staid. They tend to come in natural colors, red, or pinks, or with Hello Kitty patterns if you’re getting really crazy with it. A pair of designer/artists known as The Laser Girls are turning the fake-nail world on its head with wild 3D-printed creations. The Laser Girls’ nails come in unusual colors like purple and black. The...