Drop kibble into scattered wells, cover most with tennis balls or silicone cupcake liners, and leave a few partially open. Place the tin on a non‑slip mat to dampen noise. Dogs learn to nose or paw balls aside, collecting small wins. Vary positions, add crumpled paper, or stack shallow tins to extend duration. Supervise first sessions, praising curiosity and calm investigation rather than frantic pawing or chewing.
Thread sanded, label‑free bottles on a dowel suspended between two supports. Drill feeding holes slightly larger than kibble, then add tape to narrow them as skill grows. Secure the frame with wide feet and rubber pads. Introduce a few easy spins and generous rewards, gradually reducing payouts. Constantly check for sharp burrs around holes, retire dented bottles, and ensure the spinner rotates smoothly without pinching paws or whiskers.
Build a shallow wooden box divided into lanes, then add sliding lids with finger rails and small magnets for gentle closure. Drill scent vents and create varied obstructions so kibble settles unpredictably. Sand every edge buttery‑smooth and seal with food‑safe finish. Begin with partially open panels, progressively closing them as confidence rises. Monitor for chewing, keep sessions upbeat, and celebrate focused problem‑solving over raw speed or brute force.