Isn't it nice when things just.. work? And more specifically, things that comes out of a 3D printer... Like this miniature centrifugal water pump posted in Madox website. The creator had a batch of mini motor left from an older purchase and wanted to make something for them. So he designed and made a water pump for the motor to fit, which is tiny! And it works perfect as well! Visit his page to see more photos of this remarkable item.