I made this as a Christmas gift for my brother (and for me) so we can keep tabs on our beloved cats while we're away.
When we leave for extended periods of time we set up a security camera to keep an eye on them, but they're rarely in front of the camera when we check in.
When triggered remotely via a smart plug, the internal motor spins and drops a treat into a metal bowl that the cats can hear from across the house. They come running and we get to see them!