And here's how it was done:
6 Watt Solar Panel (back)
6 Watt Solar Panel (front)
Connect the solar panel to a solar-powered water pump, put the pump into the pond, position the panel for maximum light exposure, et voila!
It was good, clean solar fun -- while it worked. Unfortunately, after a couple of weeks, it suddenly stopped working. At first, we thought the panel had gone bad in storage (it was several years old).
Then we began to suspect sabotage.