What happens when a home user can scan and print a physical item, or download plans to print a physical item from the Internet, as easily as he or she can rip and share a song or movie? With home 3-D printers on the horizon, the question will begin to ring louder. Manufacturers of tangible goods should heed lessons learned about infringement of music, movies and books when these 3-D printers arrive in homes across the country. A key lesson learned from peer-to-peer file sharing of digital content is that once a technological monopoly (being the only one who can efficiently produce an item) on a protected item falls, the legal monopoly of intellectual property law is insufficient to protect property rights. Once efficient and inexpensive 3-D printers arrive, businesses can (1) shift to a market or bifurcated model in pricing goods, (2) seek to persuade people not to misuse intellectual property for moral reasons, (3) seek to use the judicial and legislative systems to (temporarily) slow sharing of protected designs, or (4) fade away. This article argues that the third solution (using the courts and legislatures to protect the legal monopoly once the technological monopoly is lost) sets a price on violations while removing any moral disincentive, and that only a combination of the first two methods—moral persuasion and market model pricing—will in fact protect tangible goods manufacturers from catastrophic losses.