The question went something like this... I want to take a self portrait like one I've seen somewhere on the internet.
Ok so far, surfing the web is a great way to get ideas and inspiration. The image I was directed to was an excellent image which featured a guy on a skateboard, but unusually it looked like the guy has skating with half a dozen identical twins.
As I can't skate, here's my interpretation of the image.
You can see abigger version on my Flickr page http://www.flickr.com/photos/photogavin/4272359952/
So how's it done, your asking? Well here's your answer, complete with live action video showing all the studio work and that's followed by the complete Photoshop technique.