Slava’s Snowshow Through August 25 at the Arsht Center
When he’s not performing, Slava Polunin looks like an off-season Santa Claus or an aging wizard from a fantasy-movie franchise. Onstage, in his yellow parka, oversize red shoes, giant strawberry nose, and electrified white hair, he is no less fantastical. A versatile performance artist who once organized a street march…