If you are looking for a little more control when playing games on your mobile device then these reusable gaming controllers by Donya might be a great solution for you.
The Donya Gamepad Stickers are repositionable and can be used with most games on the Apple iTunes Store. The pack comes with five stickers control pads in total, including three different single button arrangements, two 4-way directional controllers all of which can be used at the same time if needed. (Picture after the jump.)
The controllers and buttons can be used on any capacitive touchscreen display device. A pack costs around $12 and is available from Donya.
Source: Akihabara News