3D Printed Squircle Pack

Five 3D-printed variations on the squircle illusion, which looks like a circle from one direction, & a square from the opposite direction. Includes the following, in the order pictured : Ambiguous Solid Illusion (4 & 6 cell) Overlapping Squircle 4-cell Concentric Squircle Squircle Mug Pencil Holder (not watertight) Based upon the research of Dr. Kokichi Sugihara of Meiji University in Tokyo. Please specify any color preferences when you order. If no preference is specified, colors will be chosen at random. Also available in glow-in-the-dark! Note: glow-in-the-dark filaments look translucent white in normal light. When charged in sunlight or artificial light, they will glow green or blue in a dark room. Designs licensed under the Creative Commons - Attribution license. http://creativecommons.org/licenses/by/3.0/ 3D Printed Squircle Pack