If you are into retro gaming and want a controller to match your addiction look no further. The NES30 is a wireless Bluetooth controller that imitates the design of the original NES controller, and is compatible with all sorts of devices (iPhone, Android, Tablets, etc.) for only $40.
The device features the following:
-Carries over the retro design with the same feel and button input
-USB Support allows PC connection and multiplayer
-Multiplayer support for iOS
-Supports up to four devices!
-Can emulate a Wiimote!
You can pick one up from here.