Naef’s objects are the perfect harmonization of color and shape. While each item is designed to be used as a learning tool, I find them to be an unexpected accent to home or office decor. Handcrafted from wood and finished with non-toxic coloring, they would make a great gift for any architect or even for a curious child. Although, seeing as most of Naef’s products start at $200, you might hold off on handing one over to a tyke. These are some of my favorites:

Modulon designed by Jo Niemeyer in 1984, divided into dimensions of the golden mean.

Agon, designed by Fred Voss in 1968

Angular toy designed by Peer Clahsen in 1970