Any non-memory cards for IIgs memory expansion slot?

[Eric Smith <eric-no-spam-for-me@brouhaha.com>]

Were there any products made for the IIgs memory expansion slots
other than memory cards?  Were there any combo cards that provided
memory and another function?  From the hardware reference, it doesn't
look like the slot would be easily usable for anything but memory,
but there were a lot of very creative people building peripherals.

Eric

[If for any reason you want to reply by private email, please remove
the obvious spam-proofing from my address.]