Pennies. I go through 2 or 3 boxes of pennies a week. All by hand. I sell the copper at my local coin shop for 2 cents each. I'm also finding a lot of coins for my Dansco. Sometimes I find dimes or foriegn coins. I have searched boxes of halves, dimes, nickels, and quarters. The only thing I've found in these are proofs, a half crown, and a hand full of pre-1960 Jeffersons. I'll keep lookin' but around here the money is in pennies.