A career in stand-up comedy?

Resli seems to have developed an interest in telling jokes lately. Here's her favorite:


And another, that she and Lela try to tell together:


And, in case you didn't catch that in the last clip, here's the key to figuring out where all these jokes are coming from:


(Yes, the episode of the Muppet Show with Brooke Shields as a guest. We've watched it several times...)