I got the idea from Elizabeth Zimmermann's "Knitting Around" but instead of making two hats and whipstitching them at the brim to make a nice double hat, I just invisibly cast on right from the beginning -- so that when I finished the one part of the hat, all I needed to do was to pick up the stitches and make the next hat.
I attached two files...one each of the inside/outside -- vice versa -- it's reversible!
...it's actually the equivalent of four layers thick...two layers because it's a colour pattern and so, you have the carryover on the reverse side, but also, because it's TWO of them thick. I think some kid will be very pleased to have that this Winter.
I just wish I could be there to see the face of the recipient.