Graphic designing required

I need an image thats similar to [login to view URL](img below carpool logo) that represents a carpool website. It has to be colourful, high in graphics, young n trendy as many youngsters are going to access the website. Looking for some1 really creative and not very expensive. Good designers will be selected for other projects as well. I'm willing to pay between 40 - 50$ for this project. Please send links/portfolio of projects done.