There are a lot of flaws that you don't see in the final image. I tried animating and messed up and never figured out how to get rid of the dang keyframes. Now the whole animation is all wobbly from me trying to fix it:( just try to fix the keyframe problem cuz I never could. the back isn't modelled accurately. The rough plasic material you will se is by Sebastian Zapata
To delete an object's keyframe on the frame selected in the Timeline, press Alt + I in the 3D View. Alternatively, you can use the Dope Sheet or the Graph Editor to select keys on any frame, using Delete instead of Alt+I to delete them.