This article from FastCoDesign on a toy made by Hasbro tells of how CAD has the ability to virtually prototype,
visualize and share designs enhances the whole design cycle from data analysis through to final designs. A large variation of initial ideas where possible to produce quickly and economically, gaining customer feedback as the process developed.
Even so, it’s amazing how different many of these versions were from one another. The earliest versions of the Slingfire looked oddly realistic. Sure, they featured an orange barrel and trigger (this is a requirement of U.S. laws and part of Nerf’s self-imposed safety regulations). But it was more military-themed than zombie-themed. Nerf wanted to better play up the fantasy angle. So designers tried something else: a blaster with features such as fake tape wrapped around the handle and barrel, as well as spiked knuckles on the outside of the reloading lever. The latter design ultimately won out, but it still had to undergo a series of revisions before it could feel like a zombie killer that’s also appropriate for kids.
Read more @ FastCoDesign