There are all kinds of fancy pens available on the market these days. Not too many of them can write forever though. Pininfarina‘s pen can. This inkless pen has a metal nib that never runs out. The tips is made out of ethergraph, which can write forever. Of course, you are not going to live forever, so it is hard to test that claim. Nevertheless, you can pick up this pen with its special water resistant, eco-friendly notebook to put that claim to the test.