Need a toy, just print it out. Need a dress with your very own label... just design one and hit print. It doesn't stop there. Last month, Nasa commissioned the production of a 3D printer that can make food, instead of just plastic products. 3D printing was invented about 30 years ago, but its appeal has shot up in recent years. Earlier this year, President Obama gave the sector a shout-out in his State of the Union speech as one of the areas for growth.