Amazon has the Fisher-Price Brilliant Basics Lil' Snoopy Pull Along Puppy Toy for Babies/Toddlers (Ages 12-36 months) for $7.88 with free shipping on $25+ or with Prime. Same price at Walmart with free store/curbside pickup.

Apparently, this puppy named "Snoopy" has nothing to do with the Peanuts gang.