I know a lot of people who bought last year's Halloween userheads recently got e-mails saying "If you'd like to renew, please visit the LiveJournal Shop", only to find that the userhead they had was no longer purchasable. I even missed buying a userhead I wanted (342) back in July by a week. When I went to look at the shop that head was available, but when I decided to buy it the following week it was no longer for sale. If I had a choice now, I'd buy 328.
So what unavailable userheads would you all like to buy?