The Banner Creator allows you to make your own banners, advertising whatever you want! You can find it under Tools -> Banner Creator.
To create a banner enter your photo URL, 3 lines of text, select the fonts and sizes, and then click Generate Image. Once you have it the way you want, pick a Banner Slot and click Save Image. Free members have 3 Banner Slots, and Upgraded Members have 10.
Tip: If you don't have a photo URL, you can upload a photo to StartXchange. Goto Tools -> Upload Photo. Once uploaded, right click the middle sized photo and select Properties. Then copy the "Location" or "Address / URL" to the Banner Creator.
Note: If you select a Banner Slot that is already being used, it will save over the old image.