The thing that sold me on the Ploopy was the Nano, a tiny, buttonless trackball with a 1.5-inch snooker ball that fit right in between the two halves of my split keyboard. As I’ve written this, he’s uploaded at least 10 absolutely alien looking trackballs and mice, including a vaguely pyramidal one with a scroll wheel, a trackball with two trackballs, a trackball where you can twist the ball to scroll, and a spherical trackball perfect for orb pondering. I put an order in for five trackball PCBs, and my aforementioned fellow trackball friend printed me out some retro-looking, clear-and-seafoam shells for not only my Ploopy Nano, but a big brother called Trackball 7 that uses a full-sized billiard ball.