Ayaさんの他のアイデア
Copper nails.  Paint your nails with a base color and let them dry completely. Then come back and paint a layer of another color on top, and before it dries, you dab pieces of wadded up saran wrap on top lightly, then top coat

Copper nails. Paint your nails with a base color and let them dry completely. Then come back and paint a layer of another color on top, and before it dries, you dab pieces of wadded up saran wrap on top lightly, then top coat