This looks like a lot of fun- the Super Soaking Fire Hose with Backpack. It has a water gun that can shoot a stream of water up to 35 feet. Since the water is stored in the backpack, it’s easier for smaller kids to carry around- and a lot cooler. Kids can pretend to be firefighters and spray the hose- at their friends. It also comes in an Astronaut Space Pack version:
Get one of each and have a firefighter vs. astronaut water fight in your yard.
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ORICSSON Rate 35L Carry on Large Portable Waterproof Backpack Daypack for Womens & Girls for Shopping,Travel, Hiking, Camping Wine