Cashed a check at a bank I don't normally visit today. They asked how I wanted the $1000. I said in pennies if they had it. Had to say it three times before they realized I wasn't joking. They only had $50. I told them I searched for wheats. They told me they had another member who did that. I took the two boxes and left.
When I got home I realized one of the boxes they gave me was all paper rolls from customers. Not a single wheat penny. I don't know if they gave it to me as a joke or not knowing this, but the box was exactly 68% copper pennies. Works for me. My normal is about 18%