I’ve seen hats similar all over but couldn’t find a written pattern I liked, so I spent a couple days doing some trial and error and I wrote one.
I used two colors, but you can use as many or as few as you’d like. If you do use one, you may still need 2 skeins of yarn though.
The hat has a lot of stretch so it fits nicely on just about anyone. I have it listed as teen and adult, but my 10yo been wearing it comfortable for hours.
I’ve made a few and decorated them with safety pins, buttons, patches, earrings, and pretty much anything we can poke through and secure in the ears.