Amazon.com: GoodCube 1x1x1 Cube Dice 1x1 Magic Cube Puzzle, Black : Home & Kitchen
1x1x1 Rubik's Cube Solver and Simulator Online
1x1 Cube 19mm – TheCubicle
1x1 Cube 25mm – TheCubicle
Amazon.com: Rubik's Edge, 3x3x1 Cube for Beginners Single Layer Puzzle Retro Educational Brain Teaser Travel Fidget Toy, for Adults & Kids Ages 8 and up : Toys & Games