My husband and I leave our puppy in her kennel during the day, and I want to give her a toy that will hold her interest. I've filled her kong with peanut butter and froze it so it lasts longer, but she tends to get hiccups from incessantly trying to get the peanut butter out, and it only lasts her about 10 minutes, then she's wanting something else. Any suggestions? I don't want to leave her with a cloth toy for fear that she'll chew it up while we're gone and eat the stuffing.