I thought this was kinda cool : Anonymous Donor Drops Two Rare Coins In Salvation Army Kettles http://www.thedenverchannel.com/news/21914666/detail.html
I had a 2008 Silver Eagle that I was carrying as a pocket piece for a short time until I decided I didn't like carrying a pocket piece. It went in one of those Kettles earlier this week. Not quite as cool as a $20 gold though!!!