A note before proceeding
On facebook there is a Spam “See what you’ll look in the future!” which is spreading now, This will post the same message on all your friends wall with out your consent. When you click on the link it will point you to a external website (not a facebook app) and which will ask you to complete a survey. Read more
So do you want to see how you will look after 20 or 30 years ? you can visit http://www.in20years.com/ (The spam we talked above is using an image from this website), choose the parameters like Gender, Age and Drug addict and upload your photo. You can see the result. Sample below.