This was taken from my second try at water droplets.
The background was a print created in photoshop using the radial gradient. I need to practice this more but this is one I am happy with.
I used an empty plastic milk container to drop the water. I drilled a hole into the lid and put sellotape across the hole an made a tiny hole in the tape. This was suspended over a water filled baking tray and my SB-600 speedlight provided the exposure.