It's like tennis or batting practice . . . for your pooch. Using that similar technology, dogs who just can't get enough of fetch deserve GoDogGo ($149.95). Think about this sad story actually . . . after a while your arm will inevitably get tired, and I'm willing to bet that's gonna be long before the pup gets tired of chasing a ball. You'll feel guilty, there will likely be much nose nudging of your leg, possibly a bit of barking and definitely some annoyance on both parts. Then, to the rescue, (and minus the red cape) comes this machine to dispense tennis balls every seven or 15 seconds in automatic mode, magically shooting them for either 15 or 30 feet. The machine holds up to 15 balls and comes with a nifty remote control to give slower or faster pooches a run for your money. The GoDogGo will work for about five hours continuously on batteries, but if you've got outdoor outlets the fun never ends. The only downside is you'll still have to reload the bucket yourself until you can use the included instructions to train your pooch to do it himself.