My "The World's Worst Aircraft" Book should help me out a bit ;)
Blohm und Voss BV 40
Bonney Gull
Caproni Ca.60 Noviplano
Gloster Meteor (prone pilot experimental)
And last but not least, one of the weirdest of all:
Goodyear Inflatoplane:
From my book:
"As well as their famous blimps, the Goodyear Company built military aircraft under licence, such as versions of the Vought Corsair. Of course, what they really wanted to do was builder rubber aeroplanes and they got their chance in the 1950s. The US Army was particularly open to new ideas and sponsored development of the Inflatoplane (sometimes called the Inflatibird). Goodyear claimed it was 'suitable for all types of Army field operations, particularly reconnaissance'. It could be packed into a 1.25 cubic metre (44 cubic foot) container transported by truck, jeep trailer or aircraft. One proposed use was to drop the container behind enemy lines so downed pilots could rescue themselves. Testing of a single- and two-seat version carried on into the 1970s, but no orders were ever forthcoming."