As undergrad students in the 90s we couldn't forage after moveout day, but we did get tons of cool stuff from the CS building loading dock outbound trash heap. My God they were getting rid of some really strange 70s gear. One time we grabbed an old rackmount tape drive - it was enormous. We disassembled it for fun and the thing I remember the most was the cooling fan. It was a squirrel cage blower driven straight from mains power and it blew so hard you could not keep your hand on the exhaust. On. A. Tape. Drive.
About 15 years ago at this point a bunch of my friends/labmates and I salvaged enough discard PCs from the Levine Hall (Penn CS building) loading dock to assemble an entire small renderfarm, which we squirreled away in a corner of the graphics lab and used for learning and playing with RenderMan.
