Paint the crown shape with black acrylic paint. Set aside. You don't have to get super even coverage, as most of the shape will be camouflaged by the feather boa.
While you wait for the paint to dry on the crown, start working on the creepy eyeballs. Use a permanent marker to draw a circle with a small indentation drawn (almost like a Pac-Man shape) in the middle of a ping-pong ball. This will create a catch light on the eye which makes it look more realistic. Color in the form.
Choose an eye color (blue, green, or brown) to make the iris. Follow the circle you already created for the student with the colored marker. To complete the catch light, create another notch in the iris, aligned with the notch you already made in the pupil. This should give you a full circle of white between the pupil and the iris.
Add a darker color to the iris to create detail in the eye. If you started with light blue, use a darker blue to add additional lines and markings like a real iris.
To make the eyeballs look a bit creepy, use a red marker to draw the veins on the side of the eyeball. Start at the bottom of the eye and work your way up toward the pupil and iris. Repeat the whole process until you have enough eyeballs.
Add a drop of hot glue to a floral pin and attach the floral pin to the back of the eyeball. Repeat for the rest of the eyeballs.
When the crown paint is dry, wrap it around the feather boa and secure with floral pins.
Using the pins on the back of the eyeballs, place the eyeballs randomly around the crown.
Greet your followers in style with your door wreath.