Summer’s here, and it’s already hot here in the south. A good way to stay cool is to play in the water, but what can you do if you don’t have a pool? You can have a water war, of course, and you don’t have to limit yourself to water balloon grenades, either. With the Monster Water Cannon with Tripod, you’ll have all the fire-power you’ll need to vanquish your enemies and the heat. It shoots water up to 100 feet, and it attaches to the garden hose for continuous ammo. You don’t have to feel guilty about wasting water, because you could combine watering the garden with some fun for the kids. The Monster Water Cannon is available from Gadgets and Gear for $39.95.