StarculisA Megaminx with three sides misaligned in the solved state. In shape of something very close to a tetrahedron.
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.
Think Puzzles PyraminxA Pyramorphix which package does not mention this name. A high quality 2x2x2 production by Mefferts.
TriangulumA Starminx in shape of a tetrahedron. It was designed from scratch.
TribulusMorphixA puzzle in shape of the Tribulus but made from a Mastermorphix aka 3x3x3.