Emsco 24 in. Decorative Downspout Rain Splash Block, Sandstone, 2100-1 at Tractor Supply Co.
NuCast Precast Concrete Splash Block for Water and Rain Drainage from Home, Gutter, Downspout 3" high x 11" wide x 30" long Solid Concrete - Walmart.com
What Are Splash Blocks and How Do They Work?
The Fagenstrom Co - Splash Blocks - Great Falls, MT - 406-761-5200
Precast Splash Blocks - Mid State Concrete Products