Yup. Found some in my vault the other day. They're an old trivia prize and part of an achievement now. No idea what they're worth though. Little help? [edit] Ended up selling 'em for 500 csc. c:

Mine sold for 50 mil a couple of months ago. Dunno the actual value (I might have been able to get more, I just guessed at a price) but that could be a jumping off point for you? Good luck!