Fan Cel (同人セル)
Fan cels are unofficial fan made works. They are typically made by hand inking, printing, or photocopying lines onto acetate. They are then painted with acrylic or cel vinyl paints. Artists can be commissioned to recreate images that would otherwise be difficult to obtain such as works that are from digital only anime. Collectors should proceed with caution as some sellers may try to pass off fan made cels as real production cels.