A week or two ago, a nanny showed up with her charge at my baby program along with Grandma and Grandpa. So that day we added "Grandma" and "Grandpa" as extra big arm gesture sharks.
And several weeks ago my 13 year old daughter JR crooked her finger at me for some reason, and I sang this song at her. "I remember that!" she exclaimed, but she'd forgotten the "Gotcha!" at the end.
I got this song via Babygarden's demonstration video. I couldn't put up a clip from that on my blog for the parents, so I made this short film instead. JR wasn't impressed by it, but I think it's kind of fun.
You could make flannels of the characters and sing this, but I really like showing parents that all you need at home with your kids are your hands and your voice. And they all love this song!