Measure and mark the border width on the wall. Select a border width of 4 to 6 inches.
Press painter's tape along the border edge to prevent painting past the border and onto the main wall.
Select a light background color for the border. Use a roller or paint brush to spread the paint.
Pour a small amount of latex paint into a container. Select a color darker than the background paint.
Dampen the sea sponge and paint a light amount of paint on a section. Remove excess paint by dabbing lightly onto a paper towel.
Gently dab the sponge onto the wall. Cover as much or little of the wall as you like.
Add a second color after the first color has dried. Remove the painter's tape.