The main parts of the pen mouse include a cheap mouse with a failing scroll wheel, a bingo pen, and the base from an old web camera. There’s also a normal-sized pen to act as the handpiece.

Earlier this year, HyperX released the Pulsefire Saga Pro Wireless, a modular pro-level gaming mouse, which comes with extra components that can be swapped out and attached magnetically. To make ...

However, many of the pre-made modular parts aren't that different from each other, and you could easily get a less expensive non-modular HyperX gaming mouse with many of the same features. $119.99 ...