I was inspired by the Razer mouse dock and adapted the idea for my Logitech G703 mouse. The dock is designed to work with the USB dongle holder which came with the G703 mouse and a magnetic micro USB cable from amazon (net dot). Link: https://www.amazon.com/dp/B06XVRBTXK

To hold the mouse on the dock, I took advantage of the magnets in the weight compartment, so, in order for this dock to work, you will have to remove the weight and the weight cover from the mouse. The magnets that I glued into the dock which contact the magnets on the bottom of the mouse are neodymium with the dimensions of 3mm x 2mm Link: https://www.amazon.com/dp/B07MBVVQJL

Note: From what I can tell, based on images, the G502 lightspeed and the gpro wireless have the same circular cavity on the bottom for weights, so I think this will work with those mice as well, but I haven't confirmed

Video of the dock in action: https://imgur.com/gallery/toxDZWE