Note: newer version available here.

Changes: added a link to this post

For your document's <head>:

<script type="text/javascript" language="JavaScript">
var bushPeople=new Array(
'George W. Bush ',
'Jenna Bush ',
'Barbara Bush ',
'Laura Bush ',
'Barney the dog ',
'Jeb Bush ',
'Columba Bush ',
'George P. Bush ',
'Jeb Bush Jr. ',
'Noelle Bush '
);
var bushActions=new Array(
'snelches ',
'snowballs ',
'cornholes ',
'teabags ',
'alligator slaps ',
'logjams ',
'bagpipes ',
'six-packs ',
'fists '
);
var bushThings=new Array(
'on a webcam',
'midgets',
'horses',
'invalids',
'corpses',
'clowns',
'toothless old ladies',
'gay whales',
'altar boys'
);
</script>

For your document's <body>:

<script type="text/javascript" language="JavaScript">document.write( "<h2 class=\"sidebar-title\">Random Bush Family porn</h2><ul><li>" + bushPeople[  Math.round(Math.random()*(bushPeople.length-1)) ] + bushActions[  Math.round(Math.random()*(bushActions.length-1)) ] + bushThings[  Math.round(Math.random()*(bushThings.length-1)) ] + "</li><li><a href=\"http://feastofcrumbs.com/blog/2006/01/random-bush-family-porn-generator-v04/\" title=\"A Feast of Crumbs: Random Bush Family porn generator v0.4\">Get your own copy</a></li></ul><hr />");</script>