Have you ever thought. 'Damn I could really do with a decent button for my site but I don't know how to make them'. Well if you have, or, you just think one of these buttons is pretty damn ace and you want it for your site, then all you have to do is.
1:- Right click on the button and click "save picture as".
2:- Open it in paint and put your site name on the button.
3:- Add the nessesary code on your site, and upload it of course.
And voila! You have a link button for your site.