Bernoulli balls are held up on a stream of air. It is surprisingly stable, even in a crosswind, particularly with peacock feathers. Feathers and lycra are a great combination.
For different levitated balls and air flow visualisation with smoke: Here are two Bernoulli balls stabilized by three peacock feathers. Leaf blower power. Very much more stable even in a significant cross wind which a normal Bernoulli ball will not tolerate. 
The story behind the peacock feathers: There is a dedicated Bernoulli setup at the Gravity Discovery Centre in Western Australia where I have 4 displays. It will blow up two 6-8 inch plastic or polystyrene balls. Peacock feathers are also sold there and one visiting child stuck several into the polystyrene ball. While his father was berating him the Centre attendant noted that it was really stable so they got left stuck in. I picked up a few feathers to experiment myself.
The addition of a smoke generator helps to show the airflow.
The pic shows one of three stainless steel gazing balls which had been floating in an ornamental pool for 3 years unsold in a garden place. It is being levitated only a few millimetres due to the weight but will still rotate quite freely. I didn’t realize the appropriateness of my t-shirt slogan until I had already set things up.
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Bernoulli balls Google+ post: Aug 21, 2011
Photo Date: 2008