The second half to my daughter's bed post. She has never been one for dust ruffles, so I covered her box spring in pleather. You could cover it in fabric, fur, or anything you would like.
I used fabric - like for pants and skirts pleather, nice, thin, stretchy, in black.
Yes, that's a phone pic.
Looks great, covers the box spring, and gives it a more contemporary look. The black pleather will work with whatever sheets, or comforter she chooses, and it is easily changeable. Total cost less than $15. How fun would this be in a fur or a faux sheepskin?