I picked up an N64 this past summer that, apparently, was part of a time capsule; minus the capsule. It was easily the dirtiest box of stuff I've ever bought; but hell it was $20 for the whole box.
The reset button on the N64 was stuck down, so I cracked it open. It was like a small zoo in there. There were beetles, roaches, and spiders all in this little box. They were all dead and crunchy, but it was still gross. I cleaned it up and passed it on to a new home. Those things are tough.