Silverware would probably be the oldest, my wife's grandmother bought them in the early 1900s as antiques, and then some "modern" accessories that matched, now antiques themselves. They get used on special occasions mostly.

I have a slow cooker thats ~30yrs old, works great.

The DVD/VHS player with FireWire for minidv is also used while I convert old family videos to digital, and my old dv camcorder is now in my daughter's hands to try making movies with her friends.

I'm sure there's more, but thats off the top of my head.

(Removed the copy/paste accident from work crap)