See also the Caproni Transaero, which isn't totally ugly but is messy in a "maybe more wings is better? some pushing engines at the back?" kind of way.
Weird aircraft with a pusher engine? Curtiss-Wright XP-55 Ascender, right this way:
https://en.wikipedia.org/wiki/Curtiss-Wright_XP-55_Ascender
(and check out the list of similar aircraft)