http://www.bing.com/videos/search?q=a+hundred+pounds+of+clay+youtube&FORM=VIRE5#view=detail&mid=EDAEC0BAD79E278D31B5EDAEC0BAD79E278D31B5
Gene McDaniel knew it in 1961
That was the first thing I thought of. I know it dates me...
bttt