From DC's 80-Page Giant #9 starring the Flash. Goofy Captain Boomerang wants to rob banks but that stupid Flash won't let him. So he builds a boomerang-shaped rocket to send Flash off into space. He then goes to try robbing another bank.
If I had enough money to build a boomerang-shaped rocket, and one capable of blasting into space, and one capable of carrying a 180-pound superhero (without any thought of aerodynamics) into space...
I wouldn't need to rob any freaking bank!
This was even before the moon landing, so Captain Boomerang would have a technology he could sell and make freaking billions.
If I were Flash, I would have told him that.