I needed a way to give cash as a gift so I came up with this. Better than a gift card . This is good anywhere. Print Item standing up with the slot at the top. The stl model should be oriented correctly. if printing with PLA should be fine as is. If using ABS a 3.0mm Raft or 3.0mm brim(Slic3r) if recomended. Just print your Item Slip in the bill with the President facing forward. Item designed to be printed with a fff Rep-Rap style machine. I have sucessfully sliced and printed using: Slic3r 9.8 Simplify 3d Creator Enjoy