Corner photo frames. (Hummm, neat idea, but uncertain on photos wrapping around the corner. The frames could meet up on the edge, but think the frames still might be best if they met in the corner but that each wall had its own photo frame.
To add faux architectural interest in the living room, cover one blank wall with a collection of cheap frames—find them at discount stores or flea markets. Paint the frames the same shade as the wall color—it's an effect that mimics texture. Choose a high-gloss paint finish on the frames to add shimmer and sophistication and to make them pop from the wall."—