In a time when maggots dominate the news, this is a terrific story: http://news.yahoo.com/s/ap/20110520/ap_on_fe_st/us_found_money
Cool story. My father in law passed about 7 years ago and he also hid money like this... I think it came from a distrust in banks from the great depression.
It was totally a Great Depression thing. When my grandmother passed we found a little over $6K in $100-$200 increments all over the house when we were clearing it out.