A few months ago I created a fantasy series of bond certificates in SVG format. Bank notes and the history of their prints is a fascinating topic. The guilloche patterns and cross hatch shading techniques lend themselves to SVG generation. Most of it could be achieved in Inkscape. The rest was done in the XML.
The "Missing Notes" page is interesting. I thought it would be a list of notes they need examples or specimens of, but it's actually individual lost items, specified down to the serial number: <a href="https://www.theibns.org/joomla/index.php?option=com_content&view=category&layout=blog&id=14&Itemid=102" rel="nofollow">https://www.theibns.org/joomla/index.php?option=com_content&...</a><p>I like the Hall of Fame as well; gives a nice little glimpse into a hobby and community I'm not part of and have no interest in, but which a number of people are heavily invested in. I bet/hope the drama is insane...
I'm not a crazy cryptobro or anything but one would have to be blind to see the trends of big tech entering politics, which would almost certainly lead to the end of currency as such. I wonder if in the future people will collect paper money.