Hire a dog walker to entertain the dogs while the humans "play."
Hire a mobile pet groomer to groom the dogs on-site.
Design your own dog collar! This interactive activity is great for human guests. Provide inexpensive nylon collars and let owners Bedazzle them at the party
Make your own doggie stationary and labels.
"Pupparazzi" set up a digital photo station. Snap shots of your guests and print them on-site.
Coordinate a doggie "Bitch and Swap." Ask owners to bring old collars, leashes and carriers.