I don't think I've seen this mentioned on here yet:
Eastern States Hedgehog Show
June 28 - 30 , 2013
Holiday Inn Express
La Plata, MD (45 minutes from Washington DC)
The Eastern States Hedgehog Show is an annual human and hedgehog convention attended by hedgehog owners from all walks of life and from all over the U.S. as well as Canada.
It is a weekend for the hedgehog community and their pets to play and shop together, listen to educational speakers and partake in an IHA sanctioned conformation show.