Have you heard about DohVinci yet? It is a new product from PlayDoh. DohVinci comes in squeezable tubes with different tips and will harden overnight allowing you to keep your creations. My fellow Michigan Blogger, Mom Among Chaos, had a review of DohVinci last week.
I suggest arriving early as they sometimes run out of materials for popular events. My local store will often have a line for the event about 10 minutes before it begins.
In addition, you will have a chance to check out the new My Little Pony Pop toys. These toys allow you to customize the ponies.