Mental BoxA truncated Container or less extended Mental Block.
Micro 1x2x3A 1x2x3 with 6 mm cubies, making it the smallest ever made.
Micro 2x2x3A 2x2x3 handmade from a 19 mm Micro Rubiks cube.
Mini 2x3x3 wannabeA simple modification of a 2x2x2 done by extending the pieces so that it appears to be a 2x3x3.
Mixup 3x3x4Another Mixup puzzle by the (re-)inventor of the Mixup Cube. This time a 3x3x4 was "mixed up".
N-CubeA 3x3x4 with some external pieces truncated and internal pieces stickered.
One Layer Square-1The one layered cousin of the three-, four- and two-layered variants. Made from a puck.