This pattern can be found for free online at https://www.jessieathome.com/pattern/that-witch-crochet-witch-hat/

That Witch is a crochet witch hat pattern written in four sizes so the whole family can join in the fun! Want a wizard hat? Just finish your hat off after the band. Changes colors or don’t as you wish. The color changes used in the sample are written into the pattern. For the sample a size 4 (worsted weight) yarn was used along with a decorative carry along thread to add some texture and sparkle to the hat. Now you and your squad can be the witches that everyone envies with the That Witch crochet witch hat.

Size
XS (S, M, L)
Fits: 18 (20, 22, 24)
Measures: 16 (18, 20, 22)

Yarn
Herrschners Worsted 3 or Worsted 8: (100% Acrylic), Size 4 (10 wpi, 4 weight), yds/g = 2.15
Eggplant 1050 Color A: (195-215 yds / 90-100 g)
Lime 1054 Color B: (30-45 yds / 15-20 g)
Black 1010 Color C: (85-100 yds / 40-45 g)
Worsted 3 & 8 are the same yarn, just in a 3 or 8 oz ball. There are more colors in the 8 oz balls.
Kreinik Blending Filament – Use equal amount of filament as yarn, hold together and work as one.

Hook
4.5mm (US 7)

Gauge
16 sts x 9 rows = 4” 10 cm in double crochet

Other Supplies
yarn needle
2 yards hat/millinery wire or 1/16” Aircraft wire rope
electrical or duct tape

Stitches and Abbreviations
ch - chain
dc - double crochet
fphdc - front post half double crochet
hdc - half double crochet
rnd - round
sc - single crochet
sl st - slip stitch
st(s) - stitch(es)
- work step in brackets number of times indicated