So I thought I made this up and there was no way that someone could actually make one. But then I found this incredible place called
Farlow Scientific
Glass out in Cali. They are accurate down to the micron. Insane. So we also made real blown glass lungs, which are now located at Medtronic headquarters, offices and hospitals that have a dedicated suite for the tech. They are gorgeous in person. Shipping them was less fun.