Get started with the LUCKYDIP, and TYPE buttons top left, then simply click-and-drag.
Want to get more creative? Click MAKE YOUR OWN, choose your faces from the dropdowns top-left then play with the controls for an almost infinite number of effects.
The GALLERY and Randomize buttons are a good start and turning on Go Mental (type 'm') and/or Trails (type 't') produces some interesting results.
Happy with your creation? Hit SEND/SAVE and copy the link to save it or share it with the world.
Using the Add Your Own Photos buttons you can drag-and-drop images from your desktop, edit them and share! NEW! You can now use your webcam as well! (recent browser changes mean I have to re-do this bit; workin' on it...)