You can experiment with different logos. Using free PIcasa software that you download from Google you can create an icon, logo or avatar for your website.
1- Choose a photo or a graphic from your computer or the internet that relates to your website concept.
2- Use Picasa’s collage and photo editing features to put the graphic or photo on a background color. If you’re making the logo for a large enough place where people can read the text you can use Picasa to add text.
Here you can see 2 versions of the logo.
3- Save it to your desktop or folder of your choice, for use on Facebook, Twitter, Websites and Blogs.
You can also create signs for your website this way. See below.