I think, - only think - that I may have found how to do it. Follow the procedure previously mentioned by Retrocity for creating droplets (https://www.youtube.com/watch?v=GVfQ_P5avgc) And then create a pattern from the droplets. Use this pattern to create a new brush/brushes as in the (readable) link at http://graphicssoft.about.com/od/pselements/ss/custombrush.htm I had a goo with it and generated something that sort of works, so a bit more effort may do it.

Malwat

Getting younger by the day; getting older by the minute....