PHYSICAL PROPERTIES Spongeable : Good Light Fastness : Peelable. Design Name: Moshi Mash Up. Dimensions: Width: 52cms. Length: 10m. Design Repeat: Offset. Pattern Match: 53cms. Graham and Brown Kids at Home (70-241), also known by its design name Moshi Mash Up, is a multicoloured, kids, wallpaper and part of the Kids @ Home wallpaper collection by Graham & Brown.