Here is a pattern I devised for using up some of my left over sock yarn. They are very warm and the fit is great because of the ribbing. The lightweight yarn also prevents the warmers from being over-bulky looking. Because they are knit from the fingers up, you can make them as long or short as you wish (or your yarn allows). This pattern requires a basic understanding of knitting in the round with either double pointed or circular needles.
I an excited to state that this pattern can no longer be listed here because there is a pending offer to include it in a publication being released in November of 2008. I will edit the entry linking to the book once it is available for purchase.  As promised here is the link to the book Off the Cuff by Karen Wallace. It’s full of wonderful patterns. I hope you enjoy them. The picture above is directly from the book. The following one is mine.