Designer Marcin Laskowski hails from Poland and his latest creation is the Acu Lamp where the lampshade’s shape and structure take inspiration from acoustic wall panels. You know those panels made from dark gray foam with wedges that jut out to help with sound absorption? Well, that very same foam creates a futuristic lampshade.
If you don't want to build your own, RealTraps makes beautiful bass traps, diffusers, and near-field reflection screens. They're expensive, but the best pre-fab traps on the market. Service is excellent, too.
Learning about acoustics and how to setup monitors http://www.soundproofcow.com/Soundproofing-101/
How to Build a DIY Acoustic Diffuser QRD 13 Kit - YouTube