db_delete on click on a link in module contents display
Add path to delete your elements to hook_menu().

$items['something/%/delete'] = array(
  'title' =&gt; 'Delete',
  'page callback' =&gt; 'drupal_get_form',
  'page arguments' =&gt; array('mymodule_delete_form', 1),
);


In mymodule_delete_form(), use confirm_form(). It will generate "are you sure?" form for you. Then, just write mymodule_delete_form_submit() to perform actual deletion.