OK folks - what the most "obscure" development board that you have in your "collection."
I think in my case it is the VersaKit-3074, for one of the early FRAM-based 8051 chips from Ramtron (who were acquired by TI, IIRC.) Although the Zilog EZ8 board might be close. No - wait! I apparently have a National COP8 board!
(these are dangerous times for board hoarders, with vendors offering "under $30" (2020 dollars!) development boards as a matter of course, as opposed to "under $100" (1990 dollars) "specials.")