Split 1x2x3 IIIA 1x2x3 with split edges. The concept of Square-1 turned upside down.
Split Fracture-6A Fracture-6 with an additional cut between the two 3-fold corners.
Sponge Bob 3x3x3A 3x3x3 molded and painted by hand to resemble the cartoon character.
Spotted CubeA contur cut 3x3x3 inspired by the Valentine Cube.
Square-1.25A square puzzle looks like a square-1, but with one quarter of the square-2.
(1+1+1+2)/4 = 1.25.
Square-1.5A different square (2+1)/2 = 1.5
Unlike the Square-1 1/2 four of the broader pieces were split.
Square-1.75A square puzzle looks like a square-2, but with one quarter of the square-1.
(2+2+2+1)/4 = 1.75.
Square-3 PlusA Square-1, combining one layer of a Square-1 and one layer of a Square-2.