Avro Vulcan XH558, the twelfth Vulcan bomber built out of 134, is still in the air, the last of it's kind still flying. Built in 1960, it served many roles for the RAF including duties in a bomber wing and maritime reconnasaince. The plane sat on the bench for a few years when an engine explosion damaged the airframe, but has been the Vulcan operated the longest by the RAF. For years after the fleet of Vulcans were set out to pasture, the RAF operated XH558 as a display aircraft till 1992.
The aircraft is now operated by Vulcan to the Sky Trust, who takes donations to keep this complicated and very expensive aircraft in the air. I have personally seen this aircraft at the Dayton Ohio Airshow ten or fifteen years ago and is an imposing sight. It really is amazing that they have kept it flying so long, so every year is a toss up till they see how much they get.
One pleasant way to help is to try Vulcan Bomber Ale! Bottled and brewed by the Yorkshire Drinks Company, every sale has a percentage earmarked for the Vulcan project. That's a painless way to donate!
Another intesting thing this bomber does is the "Vulcan Howl", an awesome sound caused by the air intakes at 90% power. You can hear it in this video by Wonkabar007.