Post featured in home with Wordpress

mark-feature-post.php

//Código en el post type:
//Variable Meta para Mobiliario
add_action('admin_init', 'admin_init_ptype');
add_action('save_post', 'save_ptype');

function admin_init_mobiliario(){
    add_meta_box("fichadele", "Variables Mobiliario", "meta_options_mobopt", "mobiliario-opticas", 'side', 'high');
  } 

function meta_options_mobopt(){
     global $post;
     $custom = get_post_custom($post->ID);
<p><input type="checkbox" name="pic_featured" id="pic_featured" <?=($pic_featured?'checked':'')?> /> <?php _e('Highlight in Home','clmkg');?></p>
}

function save_proyectos(){
     global $post;

     $fields = array ('porta_ano','porta_idgaleria');
    
     foreach ($fields as $field)
       if(isset($_POST[$field]) && $_POST[$field] != "")
           update_post_meta($post->ID, $field, $_POST[$field]);    
} 

En el home:
        $attachments = get_posts(
             array(
             'post_type' => 'pictures',
             'orderby' => 'rand',
             'posts_per_page'   => 7,
             'meta_query' => array(
                    array(
                              'key' => 'pic_featured',
                              'value' => 'on'
                    )
             )
        )
        );

Otra forma
en functions.php
          <p><input type="checkbox" name="proy_destacado" id="proy_destacado" <?=($proy_destacado?'checked':'')?> /> Destacar en Inicio</p>

en loop home

$args = array(
             'post_type' => 'proyectos’,
             'meta_query' => array(
                    array(
                              'key' => 'pic_featured',
                              'value' => 'on'
                    ) 
          );
$portfolio = new WP_Query($args);
while($portfolio->have_posts()): $portfolio->the_post();

          $custom = get_post_custom($portfolio->ID);
          $proy_destacado = $custom["proy_destacado"][0];
    
     //loop content
?>
    

<?php endif; endwhile; ?>