A second variation of something I made up when I was 7. An earlier version on the original Spheroid. And I must admit, this version seems cooler.
Their final design is about the size of a pea or a marble. It includes a duo-output camera, sturdier shield-like legs, more dynamic folding design, and an external AI (via satellite). They're used as an exploratory probe or a spying device. My childhood imagination of them included a minute gun, for use as a tank against small soldiers, such as ants.
Also, to keep the cylinders from looking unrealistically sharp, enable the Fillet option with subdivision of 1. Fillet Radius should be below that of the cylinder itself. And set Phong to about 40 degrees. It makes a nice machine-like/manmade-looking cylinder!