Mad as a box of frogs, but wonderful
Some of the vents at the convention said that you have to be crazy to do it, and do it well, and Nina is very good at it.
I've seen her do the act with Granny a few times on TV, I didn't realise that it was one of Ken's dolls.
Did you see the one she did recently on "Russell Howard's Good News"?
She fitted a member of the audience with a mask, which she then controlled to make him "speak" (with her ventriloquial voice).
The difference between his body language and what she was making him "say" was freaky