The cool blue ripple "Thanks for the Add" graphic has been trimmed to show just the blue. (You can see the original here.)
Here's what it looks like:
To add it to your comment, select all the text in the box below and paste it into the comment on MySpace or any other networking site that accepts HTML (when it doubt, give it a try and look at it in preview mode).
For more graphics like this one, click on one of the labels below (Example: clicking on the label "thanks" will bring up other cool graphics that say thanks).