Twister IIA Fisher cube which still has 6 sides but an additional twist.
Two DisksA 3x3x3 with some pieces reduced to almost nothing and subsequently transformed in shape.
Two-Faced CubeA 3x3x3 with stickers covered with lenticular lenses. Whether it looks solved depends on the view angle.
Ufo - 30 mmA small version of the Ufo aka Pillow cube aka cushion
Ufo PuzzlerA japanese version of the octagon with stickers that make orientation of the edges visible again.
ULA Cube IA cube depicting the successes of the ULA - United Launch Alliance
ULA Cube IIA cube depicting the successes of the ULA - United Launch Alliance. Together with some trivia about the rockets.
Ultra PazzleAnother japanese knock-off 3x3x3 with a name that must be a mistake.