Silk Wonder Silker Wonder is the title of a hand-sized, cuboid metal cabinet that can be opened on three sides to reveal it empty. Nevertheless, the magician is able to make several silk scarves appear in it. It was developed by Janos Bartl in the 1920s. In a slightly later version, all the side walls of the cabinet can be opened. It came onto the market under the name “Silk Wonder Perfect”.See also different: