When space is at a premium- my condo is 800 sq ft- you have to be creative with how its used. I have a kitty SweetPea and had his litter box in the bathtub for years. Moving it when I needed the shower and keeping the tub free of litter was annoying!
I recently changed out the faucet in the bathroom sink- and when I had the vanity doors off to access the pipes- I had an idea that I could use the space under the sink for a new cat litterbox home!
I wanted to use whatever I had around the house; I already had a tension rod that didn't work for another project and several curtain valances.
I chose a floral, which went well with my Victorian/eclectic style decor. I found I didn't have to remove the hardware on the vanity since the valance covered the hinges and I may want to replace the doors one day. The box fit, with room enough for a small container holding a litter scooper.
SweetPea likes his new personal, private area and I like that I have my shower back!