if you aim the wand off the bridge in the WWOHP, a large splash comes flying at you.
That would be awesome! They could use the same thing they use on the Hulk with the sensors and the things that blast the water when the coaster's train goes past it except the sensor would detect the wand being pointed at it! I doubt that will happen though because a small stick of wood couldn't possibly fit all the wiring and other stuff. But Uni probabally has some magic of their own inside those wands...