I know, it looks like I was trying to make a Transformers birthday theme tree. In reality it is my most recent effort to turn a tree with a relentlessly upright growth habit into a spreading shade tree.
When a tree resists my efforts to prune it into the shape I want, I resort to bending the twig, as it were. Sometimes I tie limbs together, sometimes I bungee cord them to stationary objects. And sometimes I hang things from the branches to weight them down until they conform. K'nex were well suited this time because I needed so many weights, but relatively light ones. Besides, it was easier to pillage the kids' old K'nex bin than drag out a ladder and get down the box of Christmas ornaments.
Although that would arguably have been prettier.