mobile

Are there any applications for android which would make the phone think it is shaking? Or an app which would manipulate other apps that require shaking (like alarm apps that need you to shake the phone to stop the alarm) into intercepting that the phone is shaking? If there are no apps for this is there a possible way to fool the phone to think it is shaking? Or how can i create an app that does this? i also want the app to work on background. for doing this there obviously is a need to manipulate the sensors that can understand when the phone is shaking. how can this be done?