What's Up With These Bubbles We Saw at Cal Anderson Park?

"It's just fun."by Chetanya RobinsonPretty much exactly what they look like CHETANYA ROBINSON
It turns out they’re people celebrating a birthday party with huge bubble balls from a company called, well, BubbleBall.
Bryan Zippro is owner of the Redmond-based company, which provides the balls, a field and nets for people to play soccer. People rent them for birthday parties and other events, he said. “Really there’s no rules - it’s just fun.”
Why play soccer in a bubb