It was a preorder bonus, it's rather rare (only 2 or 3 in the last week) and it ends next saturday.
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&rd=1&item=180241545371&ssPageName=STRK:MESE:IT&ih=008
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&rd=1&item=180241545371&ssPageName=STRK:MESE:IT&ih=008