A laundry riser, in case you weren't aware, is a platform that lifts washing machines and dryers off the floor. This allows for easy access in the case of front-loaders, but also provides a handy storage space.
Even though it's a display, this could work for small closet laundry spaces. I love the idea of being able to fit a sink into such a small space! What if cabinet doors were instead a folding table that could be lifted into place?