Old door and bookcases turned into a desk. I did this exact same thing in our family room. Took down all the closet doors (hollow core doors) in the house as they just didnt function well. Made two desks out of them in our family room. Painted the doors red and skirted the shelving below with a tropical print fabric to match the room. Cost next to nothing, had the doors, had the old bookshelves. Will have to take pics of my own to post here.