general by the numeral 10 as shown in fig1 a desired design fabric 42 may be interleaved through any combination of the openings 30 in order to achieve the desired design effect the design fabric 42 may be interleaved through draped over wrapped around and or knotted between any combination of the openings 30 the designer is not limited in creating artistic compositions between the cornice board 10 and a single or plurality of decorative design fabrics 42 a preferred feature of the invention is the placement of openings 30 in relatively closely spaced pairs in cornice board 10 as is shown with respect to side panel 26 in fig1 however the openings 30 may also be widely spaced as is shown with respect to front panel 23 of cornice board 10 it has been found useful to utilize openings in pairs to achieve the best design effects cornice board 10 may be affixed to a wall surface by attaching a mounting bracket along the inner edge 22 28 of side panels 20 26 the front panel 23 of the cornice board may incorporate other decorative designs such as at 29 to achieve various design effects referring to fig2 a 2f 3 and 4 various embodiments of the cornice board structure 10 may be seen the cornice board structure 10 is suitably made of molded rigid plastic.