My mint condition Logitech Mouseman, the ball mouse predecessor to Logitech's first gaming mouse, the Wingman. (Review in comments) : r/MouseReview
Logitech MX ERGO Advanced Wireless Trackball Mouse
Logitech M-S34 PS/2 Vintage White Ball Mouse | eBay
Logitech M570 Trackman Wireless Trackball Mouse, 2.4GHz with Unifying USB-Receiver, Scroll Wheel, Programmable Buttons, 18-Month Battery Life, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories
Logitech MX Ergo Wireless Trackball Mouse – Adjustable Ergonomic Design, Control and Move Text/Images/Files Between 2 Windows and Apple Mac Computers (Bluetooth or USB), Rechargeable, Graphite : Amazon.ca: Electronics
Logitech M570 Trackman Wireless Trackball Mouse, 2.4GHz with Unifying USB-Receiver, Scroll Wheel, Programmable Buttons, 18-Month Battery Life, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories
Logitech M570 Trackman Wireless Trackball Mouse, 2.4GHz with Unifying USB-Receiver, Scroll Wheel, Programmable Buttons, 18-Month Battery Life, PC / Mac / Laptop : Amazon.co.uk: Computers & Accessories