Oogy has sent my cortex! It turns out to be a tea cozy, which is so very awesome. It's about 100 degrees out, but I'm going to make some tea, anyway.
She also sent a blank canvas--sock yarn ready and waiting to be dyed. There's about 450 g here, so that's about 4 pairs of socks. Good timing, because my order from Knit Picks of Bare lace- and fingering-weight yarn arrived on the same day. Definitely time to fire up the dye studio!