http://www.123dapp.com/catch
I played with it a few months back, works great for irregular shapes like people and animals, which is why they have so many examples of those shapes. I then tried a pickup truck with a cell phone, and it gave some pretty weird results. I'm going to try again with a better camera. If I understand the fine print correctly, it's free for a certain number of renderings, after that it's a subscription based service.