ThrillZoo Trampoline Sprinkler Trampoline Waterpark If you have a trampoline, turn it into the ultimate water attraction with the ThrillZoo Trampoline Sprinkler Trampoline Waterpark ($26). Simply attach the sprinkler system to the boarders of the trampoline. Image Source: amazon.com ThrillZoo Trampoline Sprinkler Trampoline Waterpark $26 from amazon.com Buy Now