@swguevin I used an old fish aquarium turned on its side and some glycerin to make the drops. I then just placed a flower inside the aquarium and lit the flower up and shot away. I had the old aquarium lying around, but you could pull out the glass from a photo frame to set up the shot similarily.
I posted MANY crystal ball shots recently!
Please have a look at:
http://365project.org/tags/my%20life%20through%20a%20crystal%20ball
And just a couple of water drops:
The ends of these stamens are enclosed in water drops. They look cool!