Christies in London auctioned a 104 year old cookie for nearly $2,000 (USD). Evidently this cookie was taken on polar explorer Ernest Shackleton's British Antarctic Expedition.
Yummy!
http://www.christies.com/LotFinder/searchresults.aspx?hdnSaleID=23261&LN=144
Yummy!
http://www.christies.com/LotFinder/searchresults.aspx?hdnSaleID=23261&LN=144