I just stared doing it, I'm on my 3rd box, I have found a ton of copper, that I can resell, im just waiting to get $50 worth of copper so i can resell on ebay for $120-$150 range. I have found a ton of wheaties pennies.. and I have found ONE indian head penny in a box..
If you can find a 1909 S VBD penny, this sells for $4,000+ on ebay.. heres the ebay link: