Drawing action: Janette and Wayne nail two anchors at the center of the room: one on the floor and one on the ceiling. They tie a doubled thread taut from floor to ceiling. They each have 100 nails. Wayne takes one end of the loose thread, finds a spot on the wall for the constellation to begin, hammers a nail, and ties the thread there. Janette then takes the thread and pulls it away from Wayne, crosses the middle anchor, hammers a nail into another spot, and ties the thread.  Repeat until all nails have been used.