You can easily pick up one of these handy bubble machines that will pump out the bubbles for 20 minutes straight! (mommyscene.com)
We've had so much fun with our battery operated bubble machine. (mommyscene.com)
I'll turn this Gazillion Bubbles Hurrican bubble machine on when she's upset, and her cries pretty quickly turn into laughter as she chases and pops bubbles all over the backyard.» (romper.com)