How do you get feedback on ergonomics from a baby? You can't, so Contours made an adult sized stroller, and that, is pretty clever

Because infants cannot express themselves, parents must make decisions for them based on guesswork. One such decision is which stroller to buy, and whether it's actually comfortable for the baby. To address this, stroller manufacturer Contours created something funny, if a little silly: A scaled-up, adult-sized version of their stroller that allows parents to take it for a "test drive"—as a passenger.

http://www.core77.com/posts/53462/Contours-Creates-an-Adult-Sized-Stroller