Hey, I'd like to add that the Umbrella Hat is likely taken from My Little Pony: Friendship is Magic, Season 1, Episode 15 "Feeling Pinkie Keen". It is a hat that Pinkie Pie wears (and later also Twilight Sparkle) to prevent falling objects from harming her.
The Umbrella hat is a phenomenon that has existed since before the 20th century, and also been in cartoons later, but given Redigit's fandom for My Little Pony, I think it is pretty evident where he got the inspiration from.
I apologize for any bad formatting and such, I have no idea how to write on a wiki!
- Diablodoc