Okay, do we all remember our Greek mythology? Hermes was the messenger of the gods. Also, Mercury in Roman Mythology. Same thing. Anyhow, he had winged sandals. Well, here’s a winged boot. Sort of the same thing. 🙂
Or maybe I’ve been reading Wacky Wednesday to my kids too many times. *shrug*
Karen B. Jones - Illustrator 
Hi! May I use your illustration as a template for my students for our “Read Across America” Read Aloud?
Please contact me through my comment form so we can discuss this privately. https://karenbjones.com/send-me-a-note/
Otherwise, I’d direct you to that image on my shutterstock account. https://www.shutterstock.com/image-illustration/winged-boot-flying-sky-490405144
Thanks!