Check out THE UGLY HAT:
Yes, I knew I was making an ugly hat when I started. I had a bunch of scraps left over from a blanket I'm making and I wanted to get them out of the way.
I'm not a hat person but I am a cold person, so there.
This pattern is super easy to follow and the hat crochets up in no time at all. If you want to make your own not-so-ugly version, the link to the pattern is here.