We know how awful the sound of fingernails on a chalkboard is, but what if your nails were chalkboards? A new nail polish aims to do just that. The Chalkboard Manicure kit includes a layer of polish that, when dry, acts as a chalkboard surface, plus chalk pens in four colors, and a clear coat in case you want to seal your artwork. Or you can erase and change the "chalk" designs. Link