A tribute to papercraft artist Haruki Nakamura's sculpture, Gear's Heart. The assembled heart measures 8.5 cm in height (8.5 cm x 8.2 cm x 5.1 cm).

A Compound of five Tetrahedra.

A ball consisting of twelve gears that rotate interdependently. Once assembled, the ball measures 4.3 cm in diameter (4.3 cm x 4.3 cm x 4.3 cm).

A Level 2 Sponge. Not as interesting as a Level 3 Sponge, but it'll burn a smaller hole in your pocket.

A "twisted" torus sculpture.