I was recently asked to recreate a picture of a new house - not quite finished - in paper in the form of a card. The result is not in card form, but rather a frame-able piece of custom artwork in 3D (which is hard to see in this 2D picture).
The design work took about 8 hours, and construction was another 15 or so - not an inexpensive little housewarming gift, but hopefully a keepsake for many years to come. And, yes, I did sign it! You betcha!