Great video, Danzig is a very good looking boy! The dog we had before Sadie loved to herd a basketball. Maybe we need to try one with Sadie, she already has 3 balls and a couple of frisbee's to play with.
Thanks for sharing, I also love your yard. What an unusual house (?) in the background though, it looks like it is set into the ground - very interesting!
Oh, and both my OH and I laughed at your "Woof" at the end of your video - that was great