3D animations for iPad game.

The game I currently develop requires a set of small animations for a number of particular objects. The game is intended for small kids to help them learning letters and words. The idea is that a still picture of an object is shown to a child and after he is able to write the appropriate word correctly, the picture "comes to life" - i.e., its animation is shown. As the result I need a set of animation frames for each object. Each frame is of 64x64 pix. size for iPad, and 128x128 for iPad New. A sample of needed content is attached as a .zip archive. If you could send me samples of your previous similar work - that would be a big plus.