Bump Cube
The Bump Cube is a simple 3x3x3 Rubik's cube, but with an interesting twist. It spawned a whole series of puzzles and created a verb of its own.
DODECAHEDRON
Megaminx
Meffert's version from 1982 with six colours.
FOUR
Gear Mastermorphix
A Gear Cube transformed into the shape of Reuleaux tetrahedron.