3X3X3 3X3X3 (PICTURE) 4X4X4 5X5X5 6X6X6 & UP CUBE (SHAPE PRESERVING) CUBE (SHAPE CHANGING) CUBOID OCTAHEDRON OTHER EIGHT-SIDED DODECAHEDRON RHOMBIC DODECAHEDRON FOUR TEN FOURTEEN TWENTY OTHER N-SIDED PUCKS SPHERE CYLINDER STAR HEADS & OBJECTS OTHER SHAPES MOVING HOLE MOVING MARBLES MOVING TILES SIAMESE & FUSED FOLDING PATTERN MATCHING OTHER MECHANISMS BOOKS GAMES MECHANISM PICTURES