TechDyno has released a fantastic new 3D Dice class that can be used for simulating dice rolls. This class is fully customizable, and you can easily create new dice by providing your own sprite images. This product is hosted on codecanyon and you can see a demo here: YouTube.
From the product page: "Ready for mobile: One can easily use the Dice class in any kind of mobile app development. Initiate the dice class like new Dice(x,x,x,x,x). Create a random number while creating the Dice class and assign it. It will stop on that number.
The Dice class accepts a sprite image which has six faces of a dice. Sprite images can be generated in any fashion which goes with the theme of the game. Even transparent sprites can also be used."