Getting all that power between your legs has lots of implications, many of which I will not be exploring. But the cowboy bronco buster is an iconic American image and to attempt to translate that image into the modern world, we finds a great number of cartoon characters astride rockets and missiles and all manner of ballistic entities. It's a symbol of man's attempt to control technology and consequently his world, but at the same time shows just how precarious man's control of these great energies really is.
Or Slim Pickens as Major "King" Kong riding a nuclear bomb in a nihilistic joyride to oblivion in Dr.Strangelove, the image of a man atop such a device tickles the deep imagination of us all.
Even The Three Stooges evoke a sense of adventure when they ride a rocket in Have Rocket, Will Travel. Check it out.
Here are some comic book covers which play around with this imagery in some entertaining and sometimes thought-provoking ways.