Every magician needs a top hat... even if they don't perform with it. I am a magician who dresses casual with a suit jacket so a top hat isn't something I wear during performance but it is something nice to add. I think that using it as a gag works great too. I think it works best to pull it out, pop it out, and put it on. Look at your audience and say, "No?" then close it and toss it on the table. It isn't a spectacular item but it is a nice touch to add to your routine.

Let's face it, a quality top hat runs around 0.
As a prop in a kid show, this totally fit's the bill.
Folds flat, and the kids get to "blow" it up!
I gave it the highest ranking for being so inexpensive.

I remember my Grandad having one of these and it was something which always made me laugh. It's nothing amazing but there is something charming and funny about it!