On second thoughts, stay and read my post. I was just doing a little bit of post-holiday-sale-surfing and I stumbled across some very cute blindfolds. I don't wear blindfolds when I'm not on a plane, but perhaps these would work a bit better than the ones that the airline gives you free. They come complete with messages on them, very useful for telling that air hostess how you feel about her adjusting your blanket while you're sleeping.
Or perhaps the one below if you drank a bit too much free champagne (not for me, I'm only 14 you know)
There are more on the website and they all usually cost $24, but are currently on sale for $21.