We have a year-old Aussie male whose fave toy is a frisbee, any frisbee. We bought about 10 of them just to have lots on hand for him! Our other dog is a shelter adoption--a 2 year old female mix of, we think, elkhound and red heeler. Her fave thing to do is a little weird: she "works" in the sunny backyard chasing the shadows made by things flying over the grass (birds, butterflies, whatever), and at night she'll chase glints of light. Her job, apparently, is to keep the place free from pesky unwanted light and shadows....