I finished my arm-warmers last night! It's my first ever attempt at such a project, and the design is appropriately simple: fold the fabric in half, stitch closed with a bit of contour at the wrist. Rip open the hole for the thumb, and stitch down both sides so they don't unravel. Hem both ends and sew a ruffle at the end opposite the thumb hole.
On my nails: OPI's Color To Watch