A new ESA-led project is investigating the ways that 3D printing could be used to create and run a habitat on the Moon. Everything from building materials to solar panels, equipment and tools to clothes, even nutrients and food ingredients can potentially be 3D printed. But if you were headed to the Moon, what would you want to 3D print, to turn a lunar base into a place that feels like home? Tell us your idea, to win a chance of actually getting it printed.