You can put a oneMission button on your webpage. Just include this HTML code in your page:

<A HREF="http://oneMission.com/"><IMG SRC="http://onemission.com/onebutton.gif" ALT="oneMission" BORDER=0 HEIGHT=32 WIDTH=88></A>

This is how it will look like:

Another way to put the button on your page is to download the image and then put it on the page. You can download the image by right clicking on it and select "Save Image As...".