In the past few years, we have covered plenty of maglev gadgets here. It is also possible to achieve levitation of small objects with acoustic radiation pressure from high intensity sound wave. This 3D Printed Ultrasonic Acoustic Levitator is a simple kit that lets you try this at home. You can use it to levitate styrofoam pieces or even tiny insects.
This kit comes with a 3D printed structure, adapter, transducers, and everything you need to get started.