a green glass sphere a reccess build into the wall filled with books an extremely fine tipped felt pen or a set of rapidograph or mars stadler tecnical fountain pens a drafting table, and or, 3d computer aided design program scratch built scale models of immaginary objects =^^= .../\...
Weeeeelllllll.... So that I can u-n-d-e-r-s-t-a-n-d you. Please don't answer why unless you're in enchildishment phase...