It ain't dumb if it works.  

Too many of us are concerned with appearing "proper" but you know who isn't? The geniuses behind these devilish creations. Oh, you need a bigger mailbox? Why spend money on one when you can just make one from an old grill?

Oh, you want to extend the cab on your truck? No problem, just Frankenstein is with whatever spare parts you have lying around. 

While don't advocate that you build your own two-story deck or use an apple as an anchor for a tent, if it works, it works.