Six paper towel dispensers were obtained from Boeing Surplus, all of which still had paper in them.
Six trees were located in Bellingham, Washington that had nails in them.
An approximation was made of how much usable wood was in each tree and the converted to how many wood products each tree could make. 150,000 toothpicks, 3000 baseball bats, 90,000 newspapers, etc.
The remaining paper in each dispenser was unrolled, the units for each specific tree were written on it, then rolled back up.
The dispensers were then placed on their respective trees early in the morning.