Yes, 3D printers are having a moment. Now, a device has found a way to incorporate different forms of ink all in the same nozzle of existing printers — everything from icing and Nutella to spackle and silicone. They create an extruder that can be attached to most existing 3D printers standard extruder tips. Then, you set the specifications to what you will be printing with (silicone and Nutella are quite different materials) and you can print as you normally would.