Hey! Strategically placed dynamite might just be my answer! Done properly, I could probably blow a large section of the surface water (the part with the oil slick!) clear out of the pond and over the bank!! I just have to erect a blast deflector in the middle of the pond and position the dynamite to the oily side of the deflector. If I'm lucky, my neighbor's cat will be on the bank when the blast occurs...

As I said earlier, I'll post photos as soon as conditions permit.