Here you'll find a variety of pen holders that can be connected to a USB port, helping you keep your desk tidy.

There are many different versions available.

One version features a hole designed to hold a 5mm diameter, 10mm long magnet. This allows the magnet to easily hold a ballpoint pen with a metal clip. This way, the holder can be inserted vertically into a monitor, and the pen will stay securely in place.

Depending on the orientation of your USB port, you may need to mirror the file in your slicer for it to work.