Here is a script that I came across that might interest a lot of AE users who do stop motion animation. The script is called Stop Motion Kit and it was created by Quba (Quba HQ)
Basically what Quba's kit does is simulate the stop motion look (think The Brides Corpse, Chicken Run, Coraline). With the script installed you'll be able to "apply and control glitches in movement, rotation and timing of your objects as well as simulate changes in camera position and exposure".
If your interested, the kit and tutorials can be downloaded here: Quba HQ » Preset+Tutorial: Stop Motion Kit