Redditor Mega_Dunsparce took several ridiculous photoshopped planes, then went and turned them into working aircraft in Kerbal Space Program. There’s a couple more examples below, and for the whole bunch, you can check out the relevant threads here, here and here on Reddit.

Well of course there's a Kerbal Space Program version of the new Star Wars trailer. It's a bit simplistic, yes, but keep in mind that this was done in a spaceship-building sandbox game. Considering that, it's pretty impressive how similar it turned out. You can check out the video below.