This invention relates to providing nail-art systems for improved fingernail and/or toenail decoration. The nail-art nail system comprises flexible, computer-printed nail-art appliqués used to decorate fingernails and/or toenails. They are preferably cut from self-adhesive vinyl film of the sort commonly used in the art of sign-making. They are preferably computer-printed with decorative designs, and computer-cut into the correct nail shapes. Metallic nail-art appliqués of the nail-art system are also preferably manufactured, preferably from self-adhesive metallized sign-lettering film. Gold, silver, aluminum, and other metals may be used. A business systems, kits, and methods of manufacture are also disclosed.