Tetracopter 12An edge-turning square prism with a height such that the core at the vertical edges has four-way symmetry.
Tetracopter 12XDA version of the Tetracopter 12, deeper cut on the 90 degree capable axes. A bandaged hybrid of face turning and corner turning cube.
TrapentrixA relative of the Biaxe with a strange shape.
Trigonal DiypramidA skewb in midturn with extensions to give it the shape of the namegiving solid.
TriTangleTriTangle is essentially the upper three axes of a bandaged Impossiball (aka Kilominx), with the shape of an asymmetrically flattened triangular dipyramid.
Twin TetraA 3x3x3 in shape of a triangular dipyramid.