2X2X2 3X3X3 3X3X3 (PICTURE) 4X4X4 5X5X5 CUBE (SHAPE PRESERVING) CUBE (SHAPE CHANGING) RHOMBOHEDRON CUBOID OCTAHEDRON HEXAGONAL PRISM OTHER EIGHT-SIDED DODECAHEDRON RHOMBIC DODECAHEDRON OTHER TWELVE-SIDED FOUR FIVE SEVEN TEN FOURTEEN TWENTY THIRTY OTHER N-SIDED PUCKS SPHERE CYLINDER ROUND CONVEX SHAPES STAR HEADS & OBJECTS OTHER SHAPES MOVING HOLE MOVING MARBLES MOVING TILES SIAMESE & FUSED FOLDING ELECTRONIC PATTERN MATCHING OTHER MECHANISMS BOOKS GAMES