YouTuber baileywhj and her friend figured out that a ladybug she calls Jerry would follow a line around a piece of paper it's being drawn, no matter how squiggly or irregular.
Jerry climbed on to my binder in chemistry and we taught him how to follow a line we drew out of pen. It took some intense training but Jer' pulled through with some sweet moves.
I looked around in my yard for a half an hour for a ladybug to replicate this, but no luck spotting one. When I do, I'll update everyone. Conversely, other delightful creatures won't cross a line you draw: