LittleThinner

Select any photo and this app will allow you to easily make an object thinner.  

Unlike other apps which alter the entire image and make it look fake, this app will only alter the object in the center of your photo, making it appear thinner while keeping the rest of the photo normal looking. You have multiple level adjustments that you can make thinner or thicker so you can adjust the photo exactly the way you want it to look. Tap the save button when done to save your new photo.