http://tags.gizmodo.com/assets/base/img/thumbs140x140/gizmodo.com.png http://gizmodo.com/tag/tennisball http://gizmodo.com/tag/tennisball Now, a beer launching fridge I can understand, but a tennis ball cannon? I find it amusing when someone spends a tremendous amount of time and effort building something that can automate basic functions—like throwing a tennis ball to a wiener dog. But the results speak for themselves. It is an inspiration for lazy people everywhere. [BoingBoing Gadgets]

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