A very simple but creative trick that will captivate your viewers depends on only a good model and a high shutter speed. You won't need invisible wires or friends with superpowers to take this photo.

Be sure to find a model that is able and willing to spend an extended period of time jumping around on your command. Mine got bored easily. Set your camera at a high shutter speed so that the model isn't blurry and you're ready. The trick is to have the model jump up but keep their legs perfectly straight and their feet parallel to the ground.

It will appear as though the model is suspended in the air and is somehow floating. Experiment with different poses and different settings, maybe even a Superman costume, to get some interesting captures.