Waterfall development

I'm sure we have all tried the charged water stream test at some point in our life. I have a thought that it would be interesting to watch people try and manipulate the water for some gain. Maybe different sounds of visuals.
Although my original idea was to have a waterfall, this type of interaction would probably work best for a single stream of water. Although I should investigate what happens with a waterfall and a charged rod.
A way to make it more interactive is to replace the more obvious rod with perhaps a charged glove so that people can feel they are having more of an effect on the stream.