I *think* I can top that.
That is to say, I think I may still have a PCMCIA dialup modem. Used to be indispensable when I visited the parents, before they finally acquired broadband.
And somewhere there are bound to be things from pre-PCMCIA times. Anyone have a use for an EISA SCSI card? Still worked fine last time I had anything to connect it to. Only for those old enough to remember or bright enough to figure out setting pre-plug&pray jumpers.