Interesting... The word cheesy comes to mind. It might play well in a one on one but for a group bigger than say, 2, not a worker effect. Cool looking on video but not a worker.
Not nearly what was expected from the description. I may have given it too much personal credit. Very easy to do and makes a great "quickie" when you need to kill a bit of time after a professor's nightmare.
A great little book on the topic of the use of transforming hats to add a little something special to any show. Sad to report, the resource suggested in the book for obtaining these hats is retiring and selling the business. They are currently entertaining a few offers for the business but not producing product in the interim. There are other sources for the product if you internet "dig" just a bit. I am on the mailing list for updates on when the product will once again be available. When I receive the word I will e-mail lybrary.com the newest resource. DO NOT let this stop you from purchasing now. The techniques and patter are worth every penny even without the suggested prop.