Always wanted a flagstone path in your garden or yard? Have some spare concrete lying around? Try out this trick from Hometalk. They used Ironite (found in lawn fertilizer) from any hardware store, coffee grounds, and vegetable oil to stain the concrete.
The total project was under $15 and looks just like real flagstone for a fraction of the cost. The whole process is only two steps and all ingredients are safe and nontoxic, and the final result looks amazing! Be sure to click through to Hometalk to see the entire tutorial, including before and after photos.