Microsoft Xbox 360 Wireless Controller for $29.99 shipped. It is available in both Black and White. Here is a screenshot for your reference. Alternatively, the White Version is also available at Amazon for $29.99 shipped. It features a 30-ft range using 2.4GHz frequency, vibration feedback, and more. As a comparison, Best Buy has it for $49.
Originally posted earlier, this deal has revised and this is just a friendly reminder.