@ellimae honestly Ellen, they are dead simple. So long as you get the focus right on where the drops are landing the rest just falls into place. The water crown I did a few days ago contains a link to an excellent tutorial.
@jantan I have a question...how do you get the background to be the same color as the drop? I have seen people do these and i always wonder if they have a special technique they use or is this all done afterwards in the prossesing?