I posted this in the wrong dang place this morning.I plan to use one inch by six inch board painted to match my crown molding,and anchor it to my walls about a foot below the crown and start from one side of my fireplace and go around the perimeter of my den and end up at the other end of my fireplace.It is about 380 feet of room for my lighthouses without using any floor space.
I am going to lay small cable lights the length of these shelves hidden so that they shine up on the crown molding and shine forward to enhance my collectables

It just might work ! what do ya think?
Rick