Skewby DuoThe face pattern of Rob's Tetrahedron (Pyraminx Duo) applied to a hexahedron, and named to evoke childhood memories.
Smallest Siamese cubeTwo mass produced cubes of 10 mm fused into the smallest siamese cubes known so far.
Snap On ToolsAdvertising for the tool manufacturer of the same name.
Soph's DiamondThe Curvy Copter Plus in shape of a hexagonal dipyramid.
Space BarSimple cornerless 3x3x3 with six single-colour cubie bars
Spalt CubeA 2x2x4 turned into a pattern and redesigned into something akin a bandaged 2x4x4.
Spectrolite GemThe Whirlpool Cube transformed into a shape with which it is a face turning puzzle.
Spinning CrossOne moving hole, nine rotating pieces and a mechanism to rotate them.
Spiral Fracture-12A hexagonal dipyramid capable of 45 degree turns on the equatorial vertices.