TetraVex 5x5x5A 4x4x4 designed after the basic rule of the namegiving puzzle "TetraVex".
Tongbert CubeA bandaged cousin of the 5x5x5 truncated cuboctahedron.
Triamese 5x5x5Three 5x5x5 cubes sharing 20 cubies with their neighbor.
Triamese 5x5x5 135Three 5x5x5s fused into a single puzzle. In this case the joint block has a size of 1x3x5.
Tropical beltsSimple looking but tough in solution 4-colour sticker modification of a 5x5x5.
Twindrops 5x5x5A 5x5x5 truncated into a shape which looks like as if one fused two drops.
UltraMorph EggA 5x5x5 transformed into an egg oriented from corner to corner.