Abstract: A device for matching the skin shade of a person with the shade of a cosmetic composition includes a tape having a plurality of transparent and opaque portions. The opaque portions have different shades and unique shapes that are coded to so that each portion can be matched to a cosmetic composition of a particular shape by the shape of the portion. When the tape is attached to or at least placed adjacent to the body portion of a person, the opaque portion having a shade that is close to the shade of the skin of the respective body portion becomes substantially invisible.

Abstract: A device for matching the skin shade of a person with the shade of a cosmetic composition includes a tape having a plurality of transparent and opaque portions. The opaque portions have different shades and unique shapes that are coded to so that each portion can be matched to a cosmetic composition of a particular shape by the shape of the portion. When the tape is attached to or at least placed adjacent to the body portion of a person, the opaque portion having a shade that is close to the shade of the skin of the respective body portion becomes substantially invisible.

Abstract: A novel building block is described which is formed of two similar interlocking elements with chamfered surfaces to allow the elements to rest against each other. In one embodiment, the block is used to made structural walls, In another embodiment, a single block with a transparent or translucent pane is provided to form a window. In yet another embodiment, a building is made with at least one floor, one roof and support structures supporting the roof and being formed of the interlocking elements. Each element is made of L-shaped components.