I finished the mittens! And also the pattern to make them.
They are fun to knit, and the shorter version is fast and uses less than one ball of yarn: perfect to use up left overs.
What's interesting about them is their construction, they are made in a spiral way, you knit a strap back and forth and attach each section as you go, so no sewing.
I've uploaded the file to Ravelry, you can get it here if you'd like.