@Ant: There’s at least a handful of ex-Danish Drakens flying in the US (at the National Test Pilot’s School)

The SAAB B-17 and the J-29 Tunnan in Sweden are deinfitely the only airworthy examples of their kind.

Some more species of which only one example is still airworthy:

Skandinavisk Aero Industri KZ-IV (in Denmark)
Skandinavisk Aero Industri KZ-X (in Denmark)
VFW-614 (D-ADAM, with the DLR in Germany)
Nord Noratlas (in France)
Lisunov Li-2 in (in Hungary)
DH Sea Vixen ( 😀 )
Dornier Do 24 (although in heavily modified form)
DH Heron (unsure about this one, but are there any others with four Gipsies than the one in Jersey?)

Now, who’s going to keep/edit a list…. 🙂