Superchop TetrahedronThe first puzzle which supports two traditional axis systems (both deep cut) of a tetrahedron.
Tetra Bandage pillowed v2A bandage cube (a bicube to be more precise) transformed into the shape of a Pillowed Mastermorphix.
Tetra-1A face-turning tetrahedron works like a superset of Master Pyraminx and F-Skewb. It has the shape of a Reuleaux Tetrahedron.
Tetrahedral Void SkewbA Void Skewb transformed into a tetrahedron but still with the holes from the Void Skewb.
TetraxisA Master Little Chop in shape of a tetrahedron.
Think Puzzles PyraminxA Pyramorphix which package does not mention this name. A high quality 2x2x2 production by Mefferts.