Groupon offers a Larger Than Life 4-Foot Panoramic Wall Mural for $35 with free shipping. That's $49 off and tied with our May mention as one of the cheapest such wall decorations we could find. After purchase, the Groupon code can be redeemed at Larger Than Life Prints. This self-adhering mural measures four feet wide and one foot tall, with more than 4,000 images from which to choose. The credit is valid for six months after purchase.