I got an iPod Nano for Christmas, and so did my Mom, so while she was here visiting I knit her a sock for her Nano, it was very simple, so here is my short little pattern...
Yarn: Patons Silk Bamboo (light weight #3 yarn) and some scrap white fingering weight
Size 2.5 needles
Using Judy's magic cast on, cast on 12 sts on each side, in the silk bamboo. 24 sts in total
work a 2k x 1p rib for 42 rows, then work the same ribbing with the white, one more row with the bamboo and then 3 rows of the white. Cast off in pattern. sew in all your ends and tada!
You could also make it a little bit larger by working a 2x2 rib and working 26 sts in total instead of 24 sts
Here is how it looks in the sock...