Good over the desk or in boys room? Pin football ticket stubs and light weight items/pictures. Distress the frame as wanted, run wire. Possibly purchase a pic at thrift store or yard sale and pop print out, use frame- it should already have a hanger in place.
To paint over ANY surface, without sanding, use a product called 'ESP Easy Surface Prep', available at hardware and paint shops. Wipe on, wipe off and paint in 90 minutes. Works well over enamel paint , without having to sand. SAVES HOURS of work. It was recommended to me by a professional painter.