Link: http://www.hersheys.com/snapfish/
offers Snapfish FREE Customized Photo Calender or Mug!! for Free + shipping
Here's the directions:
Click "enter UPC's"
Sign in or sign up
Click "Don't have UPC's" and it will automatically generate a code then
press "next"
Pick the mug or the calender and it will send a email to your email address
and give you the code and the directions
