Mixup 2x4x4Looks like a 2x4x4 but like the Mixup Cube allows strange moves.
Mixup 3x3x5A cubic 3x3x5 that allows an additional mixup turn.
Non La CubeAn edge turning cube with six cuts in two different depths.
OctexA fishered Master Skewb.
Octo-StarA face-turning cube, capable of 45 degree turns in some circumstances.
Offset 2x3x3The concepts of the I-Cube and the One-plane-bumped-cube combined.
Offset CubeA cubic 2x2x7 with a twist that allows the pieces to be exchanged between the layers.
Pillar CubeThe concept of the Wall cube implemented with a 3x3x3.