Lots of vendors, freebies, and demonstrations at the Great Iowa Pet Expo! You can bring your Fido, but you must sign a release (available on their website or at the door).
The Expo is in the 4H Building (the closest gate is gate 9). The cost of admission is:
Children (6 – 12): $3
Children (5 and under): Free
The Great Iowa Pet Expo runs on Saturday and Sunday so there is plenty of time to go there.
For more information, here is their website: http://www.greatiowapetexpo.com.