Ben went to the museum with my wife today and operated the penny press himself.
Expert press operator that he is, apparently something went slightly wrong.
Even so, I think it's fair to say that he was happy with the results.
Making pre-schoolers happy and making a collector can be quite cheap and easy - $5 for the album and $0.51 every time he gets a coin to put in it.
He wants to take that album with him whenever he goes to the zoo or the museum now. Sometimes other places too. He just wants it with him because he loves it.