The Invisible Rods technique is used in many of the best Lego models or dioramas. The Invisible Rods technique is used to display a thing flying, jumping, floating, lifting off the ground, or in this case levitating. The Invisible Rods technique is quite good for using birds, planes, or showing any motion that includes leaving the ground. In some posts I have already given a brief mention about the Invisible Rods technique in posts like Atlantis, and The Castle With Many Techniques. There are many pieces for the Invisible Rods technique in sets today. There are different types of translucent bricks, the rods (I used that in this model), the 1x2x1, and the 2x2x1/2, there are others but these are the most effective. Translucent rods are great because you can use them to have something floating in the air.