Button, Button, Who's Got the Button?

I actually had a website I have worked with ask me for a button! The only problem? I didn't have one. So I worked up this graphic this afternoon. What do you think? I really like the mom on a laptop and the daughter leaning on her reading. Cozy... And kind of how I picture my household in a couple of years. I'm not sure about the lettering on the side, though. With all the background olors it's difficult to find one that was easy to read. Thoughts?

Now... Can anyone tell me how to make that nice little box that goes underneath so all my fine friends can "grab the code"?