I finally took the time to have someone show me how to pick up stitches so that I could knit the chin strap and now the aviatrix cap is complete!
Well...not completely done. I haven't sewn the button on yet, but for good reason. I'm waiting until there is actually a baby to put it on so that I can get the fit right. I used Cascade Yarns 220 Wool and it was a super fast knit. Just an afternoon, really (although I definitely stretched that out).
It's just so tiny. It's hard to believe a person could be so tiny.