I'm planning to use these with a rain collection recirculationg pond (rain from shed roof goes to the pond and any overflow goes to the adjoining garden). I just NEED the sound of trickling water in my environment, and these forms are so easy on the eye as well. Looking into a direct solar panel to mount on the roof to run the recirculating pump.
http://www.flowformsamerica.com/http://www.flow-forms.com/I was musing that one could almost make their own forms out of concrete by just sitting their fanny down in a block of the wet mix...hehehe. Hey ya got to admit they are suggestive of the feminine form!