Paint one hard-boiled egg with the Burnt Sienna. You will need to repeat the process three times to achieve the right color. If you don't, the brown color will be to light. Wait 25 minutes in between each coat. Then wait 1 hour for the last coat to dry. Next, paint an outline of the eyes. Draw a straight black line on the bottom of the egg for the mouth and then two pointy sharp white teeth on top of the mouth.