See you in 20 years is an online service which will help you to find how you will look after 20 years. (Age my face). This tool will ask 3 questions like Gender, age and Drug addict and you need to upload a frontal photos of your face and in no time it will show how you might like after 20 years.
This is a fun website and you can use it for some fun with your friends.
Also check out Photofunia which adds effects into images. If you know more such cool online tools, do let us know via comment.