This was a request made by
Gear Spark, a machinist and inventor born and raised in Canterlot around a century before the return of Nightmare Moon, is the quintessential definition of what happens when you mix 'scatterbrained genius' with a love for achieving the impossible. Despite wanting - and completely being capable of - revolutionizing Equestria with his inventions, he possesses arrogance and selfishness almost beyond reason.
That, or he's the pony equivalent of Tony Stark.
MLP : FiM (c) Hasbro