Though soon after I'll be down to putting Pentium 1 boards on wood due to running out of cases.
I have a few spare cases, but not enough parts to make working machines out of them.
I have been in a situation (less than 10 years ago) where the only machine I had was my old Performa 475. It is quite astonishing what a machine with 25 MHz CPU sans FPU, 36 MB RAM and 640x480 resolution, running Netscape 4 and iCab 2.9.9 can do, even on the modern web.
Impressive. I had a similar situation about 15 years ago but it wasn't nearly as extreme. The hard drive in my only system died and I had no money to get a replacement. So I got a 120 meg hard drive out of a 386 someone tossed and put Windows 3.11 on it to get back online. It worked well enough for half a year until I could get something better.
Sorry, I don't have any laptops like that. :P Even if I did, I got rid of all my pre-pentium stuff years ago thinking none of it would be of any use again. Of course Maighstir's post shows even that can be usable when you need it.