Step 1: The Eyes
A penny works as the perfect template for the pupil. As you can see, I stuck a penny to the tape, cut out around it, and then stuck it to the ping pong ball. Twice.
Of course, you could use styrofoam balls and paint too!
Step 2: The Eyebrows
From the hook side of the velcro (the firmer of the two sides), I cut a piece in the shape you see. Then I pinched together the middle to make them stand up and out at an angle, and used hot glue to stick it in place.