Well its a good thing you called them stamped pennies, I was just searching the internet for info on them and found this neat forum.
Just found a roll of 1964 with lincoln smokin a pipe on all of them in a lot of Bu rolls I bought, wasnt happy to see they not worth much but always happy to find a good coin forum.
Worth and value are often very different things. Just because a item doesn't have much of a value, doesn't make it worthless. All numismatic items can be used for educational purposes and inspiration. Beauty and worth is always in the eye of the beholder.