app.css

.tiny-stone{
	width: 45px;
	height: 45px;
	position: relative;
	margin: auto;
	background: image-url('green-ubatuba.jpg');
	background-size: cover;
}

.tiny-wall-top{
	width: 100%;
	height: 10px;
	left: 0px;
	top: -15px;
	position: absolute;
	background: red;
	background: image-url('green-ubatuba.jpg');
	background-size: cover;
}

.tiny-wall-right,
.tiny-wall-left{
	width: 10px;
	height: 45px;
	top: 0px;
	position: absolute;
	background: red;
	background: image-url('green-ubatuba.jpg');
	background-size: cover;
}

app.js

	$('.sink-stone').click(function(){
		var stone = $(this).attr('data-granite');
		$('#sink-stone').css('background-image', 'url("assets/'+stone+'")');
		$('#wall-top').css('background-image', 'url("assets/'+stone+'")');
		$('#wall-left').css('background-image', 'url("assets/'+stone+'")');
		$('#wall-right').css('background-image', 'url("assets/'+stone+'")');

		$('.tiny-stone').css('background-image', 'url("assets/'+stone+'")');
		$('.tiny-wall-top').css('background-image', 'url("assets/'+stone+'")');
		$('.tiny-wall-left').css('background-image', 'url("assets/'+stone+'")');
		$('.tiny-wall-right').css('background-image', 'url("assets/'+stone+'")');

		$('#tiny-sink-container-1').css('background-image', 'url("assets/'+stone+'")');
		$('#tiny-sink-container-2').css('background-image', 'url("assets/'+stone+'")');
	})