A bright idea..
How to do it
Collect old light bulbs.
Mix plaster compound with water following the instructions on the bag.
Pour the plaster into disposable cups.
Insert the light bulb fitting into the wet plaster.
Cut the disposable plastic cup away from the plaster when dry.
Draw a face and patterns on the light bulb with Posca markers.
Varnish the sculpture for better durability.
A tip: Wash and dry the light bulb before drawing on it, thus removing any layers of grease or dirt, enabling the Posca marker to adhere optimally.