Has appeared in comments, but deserves its own thread: the MX510 Logitech mouse. Mine is approaching a decade old; still functions perfectly. : r/BuyItForLife
New Shell/Cover case +feet Replacement For Logitech MX518/G400/MX500/MX510 Mouse | eBay
Logitech MX510 931162-0403 Blue Optical Mouse - Newegg.com
Logitech M650 Wireless Mice - Small, Large, Left Handed Mouse