score:11
OK, some time, so I've found the three best candidates that I can, although not all are entire planes...or in planes...
First up, we have the Floridian Fly-in home + aircraft - you can rent a home, which comes WITH a plane and pool!
Next, Hughes' Cosmic Muffin. This is a plane that was owned by Howard Hughes, now converted into ... a house boat. The website is horrific, but the photos are really interesting.
Finally, some have their Malibu Beach House, but here we have the Malibu Wing House. About 4.5 million parts recycled from an old Boeing 747 were re-purposed to create this environmentally sustainable home, and the front portion of the fuselage and the upper first class cabin deck are used to shelter the guest house.
As for a hostel, no, sorry, no luck so far aside from the one in Stockholm, but will keep looking!
Upvote:4
I think the closest you can get would be a "Helicopter" cottage at Winvian, though it's a bit on the expensive side.
There are plenty of treehouses and Wigwams though. :)