This is a great arm warmer for you to try. I made it FLAT instead of circular. So much easier for a beginner. All you have to do is sew it up on the underside.
Pebble Blue Arm Warmer is very easy to make. It only uses knits and purls. You only have to repeat 4 rows for the pattern. CO 25 stitches. (You need an uneven number of stitches.) It's 6 inches wide using a US size 11 needle. It looks a little like lace but it's actually not. The larger the needle the more of a lace effect you will see.
Link fixed 8/13/14