This is a quick version of creating a layered nav sidebar that excludes selected attributes instead.

layered_nav_exclusion

////// Layered Nav //////
/**
 * fin_woo_layered_nav
 *
 * adds woocommerce layered_nav widgets for every global attribute to a unique hidden sidebar
**/
function fin_woo_layered_nav() {
	global $woocommerce;
	if(is_post_type_archive('product') || is_tax(array('product_cat', 'product_tag'))) {
		$attribute_taxonomies = wc_get_attribute_taxonomies();
		foreach($attribute_taxonomies as $attribute) {
			$instance = array(
				'title' => $attribute->attribute_label,
				'attribute' => $attribute->attribute_name,
				'query_type' => 'and',
				'display_type' => 'list'
			);
			$args = array();
			//output the widget
			the_widget('WC_Widget_Layered_Nav', $instance, $args);
		}
	}
}
add_filter('fin_after_widgets', 'fin_woo_layered_nav');

function fin_woo_layered_nav_init() {
	global $_chosen_attributes;
	$_chosen_attributes = array();
	$attribute_taxonomies = wc_get_attribute_taxonomies();
	if ($attribute_taxonomies) {
		foreach ($attribute_taxonomies as $tax) {
			$attribute       = wc_sanitize_taxonomy_name( $tax->attribute_name );
			$taxonomy        = wc_attribute_taxonomy_name( $attribute );
			$name            = 'filter_' . $attribute;
			if (!empty( $_GET[$name]) && taxonomy_exists($taxonomy)) {
				$_chosen_attributes[$taxonomy]['terms'] = explode( ',', $_GET[$name] );
				$_chosen_attributes[$taxonomy]['query_type'] = 'not';
			}
		}
	}
	$wc_query = WC()->query;
	add_filter('loop_shop_post_in', 'fin_woo_layered_nav_query');
}
add_action('init', 'fin_woo_layered_nav_init');

function fin_woo_layered_nav_query($filtered_posts) {
	global $_chosen_attributes;
	if (sizeof($_chosen_attributes) > 0 ) {
		$matched_products = array();
		$tax_queries = array();
		foreach ($_chosen_attributes as $attribute => $data) {
			$matched_products_from_attribute = array();
			if (sizeof($data['terms']) > 0) {
				$tax_query = array(
					'taxonomy'=> $attribute,
					'terms' => $data['terms'],
					'field' => 'term_id',
					'operator' => 'NOT IN'
				);
				array_push($tax_queries, $tax_query);
			}
		}
		if($tax_queries) {
			$posts = get_posts(
				array(
					'post_type' => 'product',
					'numberposts' => -1,
					'post_status' => 'publish',
					'fields' => 'ids',
					'no_found_rows' => true,
					'tax_query' => $tax_queries
				)
			);
		}
		
		WC()->query->layered_nav_post__in   = $posts;
		WC()->query->layered_nav_post__in[] = 0;
		
		if ( sizeof( $filtered_posts ) == 0 ) {
			$filtered_posts = $posts;
			$filtered_posts[] = 0;
		} else {
			$filtered_posts   = array_intersect( $filtered_posts, $posts );
			$filtered_posts[] = 0;
		}
	}
	return (array) $filtered_posts;
}