I have not seen any. They are likely not UV resistant and/or too expensive in a large quantity.
You are better off using mixed sizes of river stone to make a dry creek. Underlay the stone with landscape fabric to keep it from sinking into the soil. Here are a few pics of one I have (its actually an over flow area for my pond and fills up during heavy rain) -
-Brian
Bob: Like Brian said, most are not UV resistant. I have seen one that is, but the price tag of $22 per pint drove me instantly into another direction.
Tom Trigg
That dry creek looks real nice Brian, I have some spots where I could do that. I just have some loose gravel in there now, but with your pictures and more rocks I might be able to make it look better.. Thanks.
Paul
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