This year I not only wore my the ugly Christmas sweater I made last year, I also made an ugly Christmas hat to tag along with it. Yes, those are real lights on the sweater. Unfortunately, you can't see the flashing blue LED lights on the hat.
Free Knitting Pattern for Snowfall Hat - Slouchy beanie by Sara Setters features colorwork everygreens in the snow. Pictured project by Aussieraveler. Many Ravelrers have said the pattern knits up small so you may want to adjust.