Drawing the tassel of a graduation cap requires attention to detail. Begin by lightly sketching a curved line at the center of the cap's brim where the tassel will hang from. Next, draw a series of short, thin lines extending downward from the curved line, gradually increasing in length. These lines represent the strands of the tassel. To create a realistic look, add a slight curve to each strand and make sure they're not perfectly aligned. Finally, at the end of the strands, draw a small, circular knot connecting them together. This will complete the tassel and give your graduation cap drawing an authentic touch.