I'v had some success with a point-and-shoot digital using a gold filter in from of the lens, forcing the focus (setting for macro and positioning at the maximum distance for the macro setting) and using LOTS of extra light... several halogen heads, for example.
The camera I use picks exposure from the center of the frame, so I can either force the exposure to show the arc and pool (sort of), or the background, depending on if I aim dead on or a little off center.
No pics handy on this computer... I'll see if I can find some later.
I may not be good looking, but I make up for it with my dazzling lack of personality