05 Jul2015 Keep Your Kids Busy All Summer Written by Editor. Posted in Did You Know Pool Noodle Sprinkler What to Do: Puncture the pool noodle randomly around all sides of the noodle. The more holes, the better spray. Stuff one end with a small piece of foam or plastic cap, then duct tape the end securely. Decide where you would like to use the sprinkler. Try it both on the ground and hanging from a swingset. Kids liked it both ways. Position your hose and then slide the end of the hose into the foam noodle, pushing it in a few inches so it holds securely. Turn on the hose and the fun will begin!