A simple crocheted beanie for a Pullip doll, using a sportweight yarn. This was a really quick project, one that's going to be easy to fancy up with appliques, ear flaps, pompons, all that sort of thing.

Tools & Materials
DK or sportweight yarn
crochet hook C/2-2.75mm

Pattern
Make a slip knot loop and sc 6 sts into the loop; tighten loop.
Begin increases:
1) 2 hdc into each st (12 stitches total)
2) *1 hdc, inc 1* (18 stitches total)
3) *2 hdc, inc 1* (24)
4) *3 hdc, inc 1* (30)
5) *4 hdc, inc 1* (36)
6) *5 hdc, inc 1* (42)
Stop increasing. Start checking the fit after row 10 to get the length you want.
7 - 13) hdc ea st

Done!

This is such a very very basic pattern that if you want to use it to make hats to sell, go right ahead. I'd love to know about it (and I can point potential customers your way too!).