Toys, Games and Hobby Products Design MoFU Puzzle Toy by Yoshiaki Ito MoFU are transforming toys that are also brainteaser puzzles. Starting as identically shaped cuboids that slide out of boxes on drawers, each MoFU unfolds into a different kind of animal - pig, monkey, tiger, hippo, and giraffe. Each animal is its own character with cute and iconic features, but each is also a distinct puzzle. Folding a MoFU back into the correct cuboid shape so it can perfectly fit back into its box is a brainteasing challenge.