Jan 31, 2011
Quick note: PLEASE KNOW THIS IS A KNITTING PATTERN not an actual hat for sale!
I do not have any hats for sale. Unfortunately medical school takes up enough of my time that I am unable to make any hats for sale at this point. My best recommendation is to find a friend or family member that knits and bribe them with some delicious cookies.
Thank you! I really appreciate everyone’s comments and support :)

Nov 11, 2011
A note with the skull cap part of the pattern:
yes there is an odd number of CO stitches with the 1x1 rib - this number is needed in the body of the hat to make the left-leaning slant decreases line up with each other. Trust me.
If you want, you can cast on an even number of stitches, do the ribbing, and then just add/subtract a stitch once you get to the body of the hat, this will eliminate having an odd rib stitch.
But if you don’t care, then just stick with the original number of stitches.

Nov 9, 2011
I’ve had requests to include more pics of the hat, so I’ve updated the pattern. Version 1.2 has 6 new pics to give you a panoramic view of the I-cord pattern in all its glory/horror.
Thank you to all who have given me feedback - I want this pattern to live up to all your expectations!

Nov 6, 2011
Due to the recent surge of interest in this hat and the accompanying emails about construction, I have produced a pattern for the Brain Hat!
There are plenty of tips and tricks, and lots of pics.
Please ask me any questions you still have. I did make this hat over a year ago - so the pattern was written retroactively and I knitted up some new examples to photograph.

Thank you for supporting a poor, starving medical student who’s in hopeless debt!