You beat me to it!
I've made about a half dozen Fronkey-inspired bugnets and just the other day I thought of making a sock in the same style (because they're so dang easy to make).
With the bugnet, you can really cinch the bottom hole down so there is no hole at all in the bottom. Can you do that with the sock too?
I'd love to see some video on this (or I could get my butt in gear and try to make one myself...).