Hello there! Pimpositor is a fun and easy web application. It will composite with some fun stuff any picture you upload.
See this for example:
If you upload a picture like this...
...something like this will be returned to you!
Please only upload pictures where the light is good and with faces in it!
Also remember, this is not an exact science (yet) so it might not work on the first try, or not at all! Just keep trying with different pictures! :)