1. Place an equivalent unit for every printed minute.
2. Pick the right stone for the material you have used and place it at the material section.
3. When you are done with your work scan your lego board with a smartphone and pay directly via credit card or bank transfer.
Vittoria Casanova and Ulrike Mascherek created this work in the context of a Design Academy Eindhoven Bootcamp at Timelab in january 2015