Base beanie pattern: here.
Ribbing: 4.00mm, ch 8
First striped row: 4.00mm, hdc
Second striped row: 4.50mm, hdc back loop only (hdc 3, 2hdc, repeat)
Striped section pattern: 4.50mm, 2 rows hdc back loop only, 1 row hdc front loop only, one row of each of three colours
These hats are kind of addicting to make, as I don't have to read any pattern for it (the last 3 have been done off the top of my head).
I feel like I should be making tea cup cozies, but these hats are so fun to make. Decisions, decisions.