He's an eyeball! He was originally drawn in a doodle labeled as "The Giant Eye of Death" [...] He has since been a must in Stale Pancakes comics -- he's usually shown with Dr. J. Bubbles...although he's shown a LOT, whether it's doodles or comics, with Nathaniel Schmoyer.
[...]
I made Sherlock right B4 Dr. J. Bubbles, and he was probably inspiration. Sherlock gets made fun of cuz he's armless, but he packs quite a kick. Sherlock enjoys Sherlock Holmes. Sherlock is still more of a new guy, so he'll do great things in the future.