Square-1 1/2A Square-1 with the smaller pieces split in halves.
Star PyraminxThis puzzle combines the HMT with four faces resembling the megaminx.
Stealth CubeA 5x5x5 in camouflage. It pretends to be a 4x4x4.
Superclick CubeA cube which requires a lot of force to be twisted. In contrast to the Workout cube it uses magnets instead of friction.
TraheptrixA doctrinaire puzzle with two axes with 3-fold rotation and heptagonal pieces.
Treasure MinxThe concept of the Treasure Chest applied to a megaminx.
Triakis PyraminxA pyraminx truncated and extended again to give it the incomplete shape of a triakis tetrahedron.
Triamese chain 3+8+2+12+3A chain of 6 3x3x3s made to implement the remaining non-uniform triamese cubes. The name denote the sizes of the joint blocks.