When dealing with any piece of electronics, or any mechanical doodad that malfunctions, someone will usually pipe up and say "They don't make 'em like they used to!"  While that's usually a load of bull as people often remember things better than they were, sometimes you run across a device that proves that statement true.  In this case it's a 1989 Macintosh mouse connected to a still-functioning Maintosh IIci which put in 18 mighty years of service before going off to that big electronics bin in the sky.

18 years, 3 offices, and countless clicks.  I don't know of many devices that could withstand that kind of use.

Do you have any computer hardware still in use that's coming up on the two decade mark?