I have no idea if this is the same thing... but the Dollar Tree was selling a lot of Snoopy dog items near me... so don't get ripped off at Walgreens if it's the same stuff! Lol. Check your local dollar store first. They had bowls, collars and leashes, etc.
They looked like this:
http://cgi.ebay.com/Dog-Leash-Collar...item2eb0a87ebc