Step 4: Adding the Color
Mark the center of each edge and stick crepe tape left and right beside the center line, which should be about 1cm thick (0,4").
Then add the pink color between the tape stripes as seen on the picture (Don't mind that there are already a few edges applied - I thought it would be boring to sew all 20 edge-parts in a row). After a few hours you can remove the tape.
To paint the hearts on the circles, take the template with the cut-out heart and lay it over the 5 leather circles, spotting the pink color carefully with a thick brush.