Love the video! Chirp gets like that with one of his toys, only he sways back and forth like a little maniac while hanging onto this one toy. It's so funny to watch and of course he is very noisy too.
Pipsqueak has a wood ladder, different though, but she is obsessed with chewing one corder of it. It's like that's all she wants to do, I am wondering if too much. She started working on it the day I separated my two...I'm worried she's a little obsessed, but she could just be playing with her favorite thing.