A 1/72 Walrus morphed into a 1/144 flying boat:
Various 1/72 pontoon projects, first one became a 1/900ish scale sub, the USS Crappie.
This one became a 1/144 Canadian flying boat using 1/72 Sopwith Tripe wings & horiz stabs:
and this one turned into an Argentine flying boat:
This was a 1/144 Guppy that became the 1/350ish Yellow Submarine Mk II:
Next up are various 1/700 sub hulls that became 1/1000ish airships:
Now two 1/48 kits shrunk to 1/72. First one was the famous Testor's Curtiss Racer biplane:
and the venerable Testor's Spirit of St Louis which became a 1/144 trimotor airliner:
Last is my favorite, a 1/72 He-219 Uhu that turned into the 1/144 Tophe 4 motor:
I got a million of 'em!
Brian da Basher