Cella, A Bauhausian Toy

Swiss toymaker Naef has been manufacturing this Cella toy since 1967. It was designed by German polymath Peer Klahsen, whose career has included stints in carpentry, furniture design, fine art, architecture and writing. "He has a brilliant mind with an excellent mathematical-geometric understanding and spatial sense," writes Naef. The 10 x 10 x 10cm cube consists of one small cube and eight nesting components that can be endlessly reconfigured: The pieces are made of...