If there's anywhere else to find a guinea pig-a-thon -- where your guinea pig can get a glamour shot photo session and enter a costume contest -- we haven't heard of it.
You'll find this spectacular event at the 12th annual World of Pets Expo (Maryland State Fairgrounds, 2200 York Road, Timonium, Md.) coming up Jan. 25-27.
Other than the guinea pig stuff (which, let's face it, is totally the reason you're going), you'll also find pet education classes, live bird shows, dog agility trials and even a cat activity contest... although, good luck getting your cat to do anything on command.
Some of the country's leading pet experts will be on-hand to offer advice, along with seminars and demonstrations. The little ones (kids, not pets) will enjoy a petting zoo, rainforest experience and the parade of breeds.
You can also bring your own (well-behaved) pet as long as it's on a leash -- but dogs won't be permitted in cat areas, as entertaining as that might be.