Yesss.
For efficiency and quality control, perhaps a custom
ink stamp is in order.
Maybe include a cheeky message as well:
[WARNING! Obsolete Currency. Replace with Bitcoin.]
I love this.
Add a "how to convert this to bitcoin" link and it'll be useful. People don't want to learn about money. They want to spend it. If they really wanted to learn about money, they wouldn't need bitcoin, because they would have forced politicians & bankers to not have such massively inflationary monetary policies.