Extended File Field Sep 23rd, 2013 The gist: "This module extends the functionality of the core 'file' field, adding new capabilities to the file upload widget, and providing a new extendible field formatter for displaying lists of files." Read more about Extended File Field
Drupal Flag custom form Nov 27th, 2012 (updated Jul 29th, 2013) An example module which integrates the Flag module with a custom form. Read more about Drupal Flag custom form