If you want to add a 70s vibe to your living room, the Verner Panton Spy wall light could do the trick.
On the face of it, the Spy is a fairly unassuming wall light, as the picture on the right suggests. But turn it on and this metal and plastic hemisphere projects a weird, wonderful and probably hypnotic red light around the room, perfect as background light for those psychedelic sounds.
The light is sized around 50cm and sells for the not inconsiderable price of £948.99.