Ooh very cool! We've got [this wobbler bowl(https://www.petsandfriends.co.uk/products/lickimat-wobble-green-dog-treat-bowl-16cm) that our (2 year old) doggo uses and that slows her down a bit, but have found the K9Connectables have been the best for slowing down food - but screw top on the Wobbl looks very good!