A set of circles and drips symbols for use in Illustrator. Just place the .ai file into the Presets -> Symbols folder within the Illustrator directory, and it should then be available just like all your other symbol libraries.
A brush version is also available for those who want to use them as brushes. [link]
Just remember to credit me if you use them (and I'd be interested to see your finished product, so you could let me know too if you felt like it)
UPDATE: Find out how I made these brushes here: [link]