I made the pattern up, so I can put it up here on this blog. Its super simple once you get the stitch down.
The single spike crochet (ssc) is basic, once you have your foundation chain done, insert hook in next stitch, 1 row down, yarn over, pull loop to height of working row, yarn over and draw through both loops on the hook. This creates the slight bobble effect throughout the hat.
The other stitches I used are:
SC: Single Crochet
Sc2tog: Single crochet together. Insert hook into st, wrap yarn once (two loops on hook), insert into next stitch, wrap yarn once (3 loops on hook) pull hook through all three loops.
So here's the pattern:
*Do not join! Just keep working in the round, marking the first stitch with a marker*
Rd 1: Chain 61 (or however many it takes to fit your head, but it must be an odd number to create the effect we want).
Rd 2: sc in each st (61)
Rd 3- sc in first st, spike stitch in sc one row below the next stitch (this is the spike single crochet), continue this until the end of the row.
Rd 4 - spike stitch in sc one row below first stitch, sc in next stitch - continue this until the end of the row
Rd 5-17 - repeat rds 3 and 4.
(add rows if needed for height after row 17, just continue using rds 3 and 4)
Rd 18: sc 1, sc2tog, sc in each of the next 58 st (60)
Rd 19: sc 8, sc2tog (6 times) - 54
Rd 20: sc 7, sc2tog (6 times) - 48
Rd 21: sc 6, sc2tog (6 times) - 42
Rd 22: sc 5, sc2tog (6 times) - 36
Rd 23: sc 4, sc2tog (6 times) - 30
Rd 24: sc 3, sc2tog (6 times) - 24
Rd 25: sc 2 sc2tog (6 times) - 18
Rd 26: sc 1 sc2tog (6 times) - 12
Rd 27: sc2tog (6 times) - 6
Fasten off, leaving 1.5 inches to sew up top hole.
If you need a brim like I did, join yarn on the bottom, anywhere will work.
Rd 1: Sc in each st (61)
Rd 2: Sc in each st (61)
Rd 3: Sc in the back loop only of each st (61)
Fast off and weave in loose ties.
If you have any questions, or if its not working for you, let me know and I'll try and clear it up for ya.