Replacement top Shell/Cover/outer case for Logitech G603 Wireless Gaming mouse | eBay
RLSOCO Hard Case for Logitech G502/G305/G604/G603/G600/G703/G403/G PRO/G903/G910 Gaming Mouse & Compatible with Logitech G PRO /MX Master 3/MX Anywhere 2 Mouse
G603 with custom cover : r/LogitechG
Some G603 love : r/MouseReview
Replacement top Shell/Cover/outer case for Logitech G603 Wireless Gaming mouse | eBay
Colorware Logitech G703 Review: Custom mouse for your battlestation - YouTube
Mouse Back Cover for Logitech G703 G603 G403 G903 Gaming Mouse Door Hosing Back | eBay