The original thread for this is long gone, so I could not resurrect it.
Post up your favorite finds for free samples.
Grass Roots Magazine Issue: http://grassrootsmotorsports.com/
Stride gum: http://www.thepeople-vs-stride.com/
Brownie Bowl: http://freewarmdelights.bettycrocker.com/WarmDelights/Default.aspx
Mechanic gloves: http://www.superiorglove.com/sample/index.asp