diff --git a/composer.json b/composer.json
index 08970c4..b7e5d95 100644
--- a/composer.json
+++ b/composer.json
@@ -32,6 +32,16 @@
     "issues": "http://drupal.org/project/issues/zurb_foundation",
     "source": "http://cgit.drupalcode.org/zurb_foundation"
   },
+  "autoload": {
+    "classmap": [
+      "src/ScriptHandler.php"
+    ]
+  },
+  "scripts": {
+    "subtheme": [
+      "Drupal\\foundation_sites\\ScriptHandler::subtheme"
+    ]
+  },
   "require": {
     "drupal/stable": "^2.0"
   }
diff --git a/src/ScriptHandler.php b/src/ScriptHandler.php
new file mode 100644
index 0000000..ac421b3
--- /dev/null
+++ b/src/ScriptHandler.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace Drupal\foundation_sites;
+
+use Composer\Script\Event;
+use Symfony\Component\Filesystem\Filesystem;
+use Symfony\Component\Finder\Finder;
+
+class ScriptHandler {
+  public static function subtheme(Event $event) {
+
+    // Get safe subtheme machine name from args.
+    $sub_name = 'zurb_foundation_subtheme';
+    $args = $event->getArguments();
+    if (!empty($args)) {
+      $input = $args[0];
+      $strip_chars = preg_replace('/[^a-zA-Z\_\s]*/', '', $input);
+      $strip_space = preg_replace('/\s+/', '_', $strip_chars);
+      $sub_name = strtolower($strip_space);
+    }
+
+    // Copy STARTERKIT to parent dir.
+    $fs = new Filesystem();
+    $fs->mirror(getcwd() . '/STARTER', '../' . $sub_name);
+
+    // Rename STARTERKIT.* files
+    $finder = new Finder();
+    $finder->files()->name('/STARTER/')->in('../' . $sub_name);
+
+    foreach ($finder as $file) {
+      $location_segments = explode('/', $file->getRealPath());
+      $old_filename = array_pop($location_segments);
+      $location = implode('/', $location_segments) . '/';
+
+      $new_filename = preg_replace('/STARTER/', $sub_name, $old_filename);
+
+      $fs->rename($file->getRealPath(), $location . $new_filename);
+    }
+
+    // Activate subtheme .info file.
+    $finder = new Finder();
+    $finder->files()->name('*.yml.txt')->in('../' . $sub_name);
+
+    foreach ($finder as $file) {
+      $location_segments = explode('/', $file->getRealPath());
+      $old_filename = array_pop($location_segments);
+      $location = implode('/', $location_segments) . '/';
+
+      $new_filename = preg_replace('/yml.txt/', 'yml', $old_filename);
+
+      $fs->rename($file->getRealPath(), $location . $new_filename);
+    }
+
+    // Replace STARTERKIT in file contents.
+    $finder = new Finder();
+    $finder->files()->contains('/STARTER/')->in('../' . $sub_name);
+
+    foreach ($finder as $file) {
+      $old_contents = file_get_contents($file->getRealPath());
+
+      $new_contents = preg_replace('/STARTER/', $sub_name, $old_contents);
+
+      file_put_contents($file->getRealPath(), $new_contents);
+    }
+  }
+}