It's no secret that Camden's favorite thing is Bubbles. He asks for them when he wakes up, he asks for them before bed, he asks for them when Chris comes home. As soon as he sees Chris' car pulling up in the drive, He says "Da-da" and then repeats "Buh-buhls", over and over until we finally get the point.
This is a video of bubbles. Please excuse Pearl as one of her favorite things happens to be bubbles. You can see her chasing them in the video. You will also notice that Camden can successfully blow his own bubbles. I suppose teaching him how to blow a whistle toy paid off - he can also blow his nose! Also he says "Buh-Buhl" right off the bat - so you'll have to catch it rather quickly!