Fill Your (Non-Functional) Fireplace
It might go without saying that this tip is for folks with non-working fireboxes. Try lining the inside with books from your home collection. You could go for a theme content-wise, or just use books of a similar size.
In the kids’ room, fairytale books or vintage young adult novels would be charming–and give them something to reach for when they’re bored. In the living room, you could use back issues of National Geographic or other travel magazines and books–or coffee-table volumes of art. Romance novels would be a cheeky touch in a bedroom, especially if you’ve got a soft boudoir theme in place already.
If you would prefer matching look, wrap them in coordinating paper first. If it’s the jumbled look that doesn’t strike your fancy, set up a bookshelf that fits your firebox well.