1. Open up two tabs in your browser. Your Signature editor page & userbars.org.
2. Search anything interesting to you on userbars.org.
3. Find one bar that suits you and right click it. Find copy image location and click it.
4. On your signature tab type [img]
5. Right click and paste (or use hot keys if your smart) the image location you copied in step 3.
6. End your code with [/img].
Now you have signature