Captain America: Mister Stark, I find myself in need of a certain amount of technological assistance. You see, I'm going up against Nazis armed with laser cannons that can reduce groups of men to their constituent amino acids; turrets powered by some kind of ancient artifact; and tanks almost, but not quite, bigger than your mom. I need some help here, is what I'm saying.
Tony Stark Sr.: What'd you say about my mom?
Captain America: Let's stay focused here, Stark. How can you help me?
Tony Stark Sr.: Well, it took me several years to develop, but I have constructed for you a circular disc that, when angled properly by the user, can deflect projectile weapons and even melee attacks, thereby preserving you from harm. You can attach it to your arm or, in a pinch, hold it with one hand.
Captain America: Did... did you just re-invent the shield? Did you really take millions of dollars in government grants in order to give me the foremost in cutting-edge medieval technology?
Tony Stark Sr.: Please! They didn't have polymers in the middle ages.
Captain America: So.... it's a plastic shield, then.
Tony Stark Sr.: "Polymers" sounds more scientific. Plus! You can also, I dunno, throw it. Don't think they did that in the middle ages.
Captain America: So what did you use the rest of the money on, out of curiosity? This thing must've cost all of twenty bucks.
Tony Stark Sr.: Eh, going out clubbing. Scoring chicks. You know how it is.
Captain America: How... why... but clubbing doesn't cost several million dollars!
Tony Stark Sr.: Depends on if you're doing it right.