I bought one of these for Misha and I'm so happy with it I thought I'd share
Busy Buddy Tug A Jug
A quarter of a cup of kibble in her tug-a-jug keeps her occupied for over half an hour! She is thoroughly enjoying the challenge of getting the kibble, and continues to play with it when the kibble is gone.
Probably no good for those of you with furbubs who demolish furniture and rubber tyres, but worth a mention for those furbubs who don't have the jaws from hell!