Show Post / Page / Custom Post Type to Home Page

function.php

//Show on homepage
function show_on_homepage() {
	$post_types = array('post', 'page');

    add_meta_box(
		'meta-box-id', __( 'Show On Home Page', 'show_on_homepage' ),
		'show_on_homepage_callback',
		$post_types,
		'side');
}
add_action( 'add_meta_boxes', 'show_on_homepage' );

function show_on_homepage_callback( $post ) {
	global $post;
	$custom = get_post_custom($post->ID);
	$show_on_homepage = $custom["show_on_homepage"][0];
	$show_on_homepage_value = get_post_meta($post->ID, 'show_on_homepage', true);
  	if($show_on_homepage_value == "yes") $show_on_homepage_checked = 'checked="checked"';
	echo '<label><input type="checkbox" name="show_on_homepage" value="yes"'.$show_on_homepage_checked.'/>Show</label>';
}

function save_show_on_homepage( $post_id ) {
	global $post;

if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
    return $post->ID;
}

  update_post_meta($post->ID, "show_on_homepage", $_POST["show_on_homepage"]);
}
add_action( 'save_post', 'save_show_on_homepage' );

home.php

<?php
$post_types = array('post', 'page');
$args = array (
    'showposts' => 10,
    'post_type' => $post_types,
	'meta_key' => 'show_on_homepage');
$query = new WP_Query($args);

if ( $query->have_posts() ) : ?>
<?php while ( $query->have_posts() ) : $query->the_post(); ?>
    <div>
        <h2><?php the_title(); ?></h2>

    </div>
<?php endwhile; endif; wp_reset_postdata(); ?>