Feliks PillowA pillowed 3x3x3 mass produced by Mefferts and dedicated to Feliks Zemdegs.
Fence CubeA bandaged 3x3x3 with movable restrictions.
Fifteen CuboStricker variation. Sold by the italian license taker of ITC during the original cube craze.
Floppy Flip 3x3x3A heavily truncated 3x3x3 to give it a resemblance of the Flopy Flip.
Fluffy CubeThe world's first in Wavy-style Rubik's 3x3x3 Cube.
Follow CubeA customly stickered 3x3x3 with an extremely complex stickering scheme.
Full Turn CubeThis is a 3x3x3 which allows only 360° turnes. It is a puzzle that isn't.
Fused cubeA bandaged cube reimplementing one half of the Fused Cubes.
Futurama cubeA 3x3x3 covered with icons of some characters from the series futurama.