Pattern: E.L.F. Cap by Kendra Nitta
Needles: US3 and 4 Addi Turbos
Yarn: Lots of leftovers! Koigu, Hazel Knits, Sundara, Alpha B
Notes: This is a very entertaining knit. There's lots of short row shaping, cables, stripes, colorwork.
Be aware there is errata for one of the short row sections. I was working from the original version of the pattern that appeared in The Unofficial Harry Potter Knits. It has since been republished in Knitting Wizardry. I don't know if the error is in the book as well. You can find the corrected instructions on the Ravelry page.