The children were 'blowing bubbles'. [=were making soap bubbles by blowing air through a thin layer of soap]
I'm sorry to 'burst your bubble', but the job is not really that exciting.
The Internet stock 'bubble' finally burst.
(..) No friends. Just his mother and me. And I'm out there six days a week hauling Yoo-hoo. We have sacrificed everything, all for the sake of our little... ...bubble boy. - Excuse me. - Oh, here. Excuse me. Anyway, we were watching you on TV... (..)1992 TvShow: Seinfeld Title: The Bubble Boy Season: 4 Episode 7
(..) I was watching the show with my son Donald. He's got this rare immune deficiency in his blood. The damnedest thing. Doctors say he has to live in a plastic bubble. Can you imagine that? A bubble. - A bubble? - A bubble? Yes, a bubble. - Do you mind? May I? (..)1992 TvShow: Seinfeld Title: The Bubble Boy Season: 4 Episode 7