In the era before 3D printers, inventing eagle gauntlets would have been difficult, but now it was easy. Better yet, it gave him an excuse to purchase a fancier 3D printer that was capable of making stronger, lighter parts. Rufus was gradually getting clued in to the fact that dudes like T.R. actually liked it when you spent money, provided you did it within reasonable bounds. It proved that you were doing something.