Ran across this subreddit and was inspired to dig out my old Logitech Trackman Marble FX. Haven't used it for 10 years, but I think I might run it as my daily
Amazon.com: Logitech Trackman Marble Plus Wheel Trackball/Mouse T-CL13 : Electronics
Logitech TrackMan Marble FX Trackball
Marble optical technology : r/Trackballs
LOGITECH Trackball Marble FX TRACKMAN MOUSE T-CJ12 PS/2 | eBay
Amazon.com: Logitech TrackMan Marble FX Trackball : Electronics