A friend of mine used to have a rocket launcher on his van. The took a tube, mounted it from below the headlight into the cabin. Then they bought those little model rocket engines. They'd launch it while driving. They would still go forward even if they were doing 60mph+!!
that would be funny to make up some FAKE rocket launcher system on your rig, and across the hood so they
can read it in their rear view mirror, "Please move out of my way, or Else" arrow point up ....LOL