My favourite print (or should I say prints) would be my Robot from the original Lost In Space TV series. I printed each piece individually, in the colour that it needed to be. So no paint was involved, except the the little buttons on the chest. The dome on top though I had to bodge, it's almost impossible to print filament that transparent. So I inversed the dome file and printed that, making a mold. Then found some small sheets of clear acrylic from Spotlight and used my heat gun to soften it into the mold, then glued the two pieces together.
