This is the best I could do w/ a .jpg. If you hadn't specifically asked for that one picture, I could have gotten you something better, but .jpg's are very hard to make look good. Hope you like it. I tried to use the charger's colors in there too.
That's the preview. Here's the direct link.
http://img508.imageshack.us/i/lamuertemaniak.png/
Once you click the link, look for blue text that says "embed this image." Click it and it will expand have a few codes. Copy the "Forum" code and paste it into your sig. Once you've pasted it, delete the line that says "uploaded with imageshack"