The Lego Printer

This is honestly among the coolest sh*t I've ever seen!! At one point, in my room as a child, there was a swarm of Lego pieces threatening to stub toes and make people slip on a moment's notice. My parents always told me to pick up the pieces and do something constructive with them (like what?? I was 6!! I'm not going to build a damn arc reactor!). My guess is, that if I built something like this, no amount of floor-bound Lego pieces could upset them. Randomly stumbled onto this video while browsing Youtube, and it has me wanting to build a printer myself. This guy used a felt tip pen, simple programming software and a horde of Legos to create a printer, complete with the little yellow Lego guys doing all the grunt work of the actual printer. You might not be printing out your 30 page senior dissertation on this, but it'll at least distract you while you wait...