Diamond CubeA mass produced variant of a 3x3x3 in shape of a diamond.
EggaminxExtended megaminx, modified form, convert into an egg.
EggminxA megaminx in shape of a egg with haindpainted markings.
Felice puzzleA 3x3x3 in shape of a football used for australien football.
Floppy DonutA 2-layer nonagonal prism in shape and appearance of a Donut.
Floppy EggOne of the earlier variants of the Floppy Cube. This one depicts an opened egg including the yolk.
Flower BlocksA sample of the Mirror Blocks truncated and restickered.
Flower PuzzleSomething halfway between tetraminx and "pyraminx with hexagons"