When Chris and I started dating, I knit him the obligatory boyfriend hat, which he finally "lost" last year. As the weather turned cold, I promised to knit him a new hat, and he picked out Jared Flood's Turn A Square hat (rav link). The boy's got good taste in patterns!
I used up some left over Eco Wool from my Owls Sweater, and the light stripes are a mystery worsted weight yarn. I followed the pattern exactly, and even learned how to make jog-less stripes. Overall a stash-busting, new technique-learning success!