Its not as easy as it may have first appeared ? There is a technique though.....manual focus, flash, black background and try to shoot a bit higher than down into the sink.....place a plate as high as you can at sink or counter level........
In one of the pics I shot you can see one drop in front of the other turn the reflection back rightside up!! It's crazy! I took a ton of pics but when I find I'll let you know. lol
The day is always better when you're flying upside down.