If you're sensing a common thread in all this, you're right: It's you.
More than anything else, humans define a toy's importance.
"It depends on what meaning you want the toy to have," Kover says. "A Kong is a great thing you can put in their kennel to take a nap or rest. So you would use that Kong to represent calm basically.
A frisbee, on the other hand, means one thing and one thing only: action.