Small Update; 25th Anniversary Keycap (not keycaps) available here:
Charcoal 25th Anniversary Keycap: Charcoal Happy Hacking Keyboard (HHKB) 25th Anniversary Fn Key Cap | Fujitsu Scanner Store
Grey 25th Anniversary Keycap: https://fujitsuscannerstore.com/cg01000-302601/?__hstc=247747608.7c78103cc5a23307749dad19cebd61c6.1640027015894.1640027015894.1640113359763.2&__hssc=247747608.1.1640113359763&__hsfp=3393150589
39 bucks shipped for a keycap. The Topre tax is real lol.