I made some stencils with my vinyl cutter,
and lightly sanded.
I laid out them out on a painted 2" x 4", until I got them spaced and angled the way I liked. I nailed them on with some old rusty nails. I then took some very watered down black paint and quickly painted over the front and edges and wiped most of it off with a wet paper towel. I took it outside, stuck it in the dirt, and piled some rocks around it.