"Couples in line at an amusement park," one viewer joked, as others also poked fun at the dog's bond with the toy.

Soft plastic and plush puzzles are good options ... Frisco Hide and Seek Plush Volcano Puzzle Dog Toy: This was a very close second to the Outward Hound Hide-a-Squirrel Plush Toy.

A Massachusetts dog toy entrepreneur is seeing success in this growing market, and she said it’s all thanks to her beloved ...