Wow…and I thought that the Twinkie was the only food that could last until the end of time:
http://news.yahoo.com/s/yblog_upshot/20101012/bs_yblog_upshot/mcdonalds-happy-meal-resists-decomposition-for-six-months
Update July 5, 2012: (Day 816)
Apparently the saga continues. With no decomposition in site. Shall we call Cleopatra for a comment?