Treat Dispensing Ball

thingiverse

Place small rewards into this specially designed spherical plaything and observe as they spill out gradually. The distinctive ridges on its surface cause it to wobble rather than simply roll, making for a more enjoyable game of batting around. The unique shape at the bottom also facilitates easier ejection of treats when it oscillates. Occasionally, a reward may even fly off onto the floor as it careens about. I've made one of these toys for my feline companion and he thoroughly enjoys it, often becoming fully engaged in play for an extended period.