Nail-decorating and styling kit

A kit, comprising:

• a base layer;
• and
• at least one three-dimensional, flexible, and shape memory nail sticker placed on the base layer,
• wherein the at least one three-dimensional, flexible, and shape memory nail sticker comprises:
• a film of thickness between 30 and 140 μm, and
• a self-adhesive coating at the base layer side,
• wherein the film together with the self-adhesive coating and the base layer forms a three-dimensional protrusion,
• wherein the three-dimensional protrusion mirrors an anatomic nail shape of a whole nail plate, such that the at least one three-dimensional, flexible, and shape memory nail sticker has a protrusion shape that is convex and that is a section of a sphere, the section of the sphere mirroring the anatomic nail shape,
• wherein each of the at least one three-dimensional, flexible, and shape memory nail sticker is a permanently formed flexible three-dimensional nail sticker placed on the base layer, and each of the film and the self-adhesive coating includes an edge along a perimeter of the three-dimensional protrusion, and
• wherein when the at least one three-dimensional, flexible, and shape memory nail sticker is unstuck from the base layer and is placed on a nail layer starting from the nail lunula, the at least one three-dimensional, flexible, and shape memory nail sticker is configured to:
• curl back to restore the anatomic shape of the at least one three-dimensional, flexible, and shape memory nail sticker that is placed on the base layer, and
• maintain the anatomic shape of the at least one three-dimensional, flexible, and shape memory nail sticker that is placed on the base layer, such that the at least one three-dimensional, flexible, and shape memory nail sticker is anatomically adapted to the nail shape.