Maybe the easiest one, this method  doesn’t require a lot of effort to create your garden path. Firstly you should get a picture frame.There are two ways to get it.First, you can buy it on internet sites like ebay or amazon.com.Second way is that you can make one by yourself with your creativity. There are some ways to make it: you can use some wood board snailed together or a styrofoam. We suggest using the second option because it is easier to give a different and creative design (only draw the choosen shape on the styrofoam with a pencil then cut it using a sharped knife, following the drawing lines of the figure. Then remove the rest of the frame and it is ready!). The next step is preparing the concrete. It can´t be too wet or it wont keep the shape.Place the frame on the ground, spill the concrete on frame and wait for a few minute. Remove the base vibrating it for a few times to make it loose from the concrete.

source:socreativethings