One thing I learned on this project that I didn't really learn on my smaller double knitting experiments is that double knitting takes twice as long. Who would have guessed? :P Also, I was knitting in the round orange side out, and you can tell the orange side looks a little better than the blue. I need to work on that. I think what happens is that I don't pull as tightly or as consistently when I purl, so the blue side looks a bit lumpy and uneven. But it looks fine when it's on a head, so that's good.
Made another double knit hat, this one portal themed! I had this idea since I first started experimenting with double knitting and I am glad I finally got around to it. I also have a good idea for a double knit Super Meat Boy/Bandage Girl scarf. That will probably happen sometime.
I plan on selling both of these at Anime Detour in Minneapolis later this month. Speaking of which, I need to get knitting! There is so much to do!