This one is right in my wheelhouse! With more and more vintage games getting ported over to Android, the only thing missing is the authentic feel of gripping a Nintendo controller and mashing away.
The NES30 has the look and feel of a classic NES controller, but connects with Bluetooth or USB. Its rechargeable battery provides over 20 hours of use per charge and the re-programmable keys allow you complete customization. This controller is compatible with not only your tablets and phones, but any Bluetooth or USB-ready devices including Mac and PC. For just $29.99 you can load up an emulator and vintage roms (of games that you own, of course) and re-live your gaming past! Anybody want to get destroyed in Tecmo Super Bowl?
Check this deal out, and many others at deals.androidguys.com!