I can not resist this one:
Of course it is the
SAAB J-29 "Tunnan" (en. "Flying Barrel"),
If you want to build one there is a small EDF kit available from [link=http://www.mjd.se/]MJD[/link] and a big turbine powered one from [link=http://www.der-schweighofer.at/artikel/101089/?query=saab]Schweighofer[/link].