Shape shifting 2x3x3This is a 2x3x3 that allows 90°-turns on every face and can therefore change its shape drastically.
Shapeshifting 3x3x6A fully functional 3x3x6. The pieces are deliberately designed to be unproportional.
Skinny CubeA redesigned and even thinner variant of the Slim Cube.
Slide-1A Square-1 with four holes on the top and bottom layer and with additional holes on the sides.
Sliding 1x2x3A 1x2x3 enhanced with the abilities of a Sliding Puck.
Sliding 2x2x3A successor to the sliding 1x2x3 and the sliding Domino.
Sliding SSQ-1The successor of Tony Fishers sliding Pucks. 6 layers of tiles taken from various Super Square-1's.