Back in college, I found that there was a mathematical symbol called nabla (looked like an upside-down delta).
Since I use to doodle in class, I created a nabla character. This little guy showed up in a lot of my notes throughout those years. In the end, I created a calendar set of him to proudly display on my old internet accounts.
A lot of the files are lost in my backups, but here’s what I could find.