A mousepad is always needed if you don't want to ruin the surface you work on or it's not very good for controlling the mouse.
Fans of the Assassination Classroom might enjoy a mousepad with Koro Sensei's face, even though it can look a bit scary. The scary part is the evil-looking smile showing all his teeth while the eyes are 2 black dots.
This mouse pad is approximately 12 inches long. Unlike the majority of mousepads, this one is round and not rectangular. It still offers plenty of operational space regardless of the type of work you must complete.