PageLines PasteBin.

	$qf = new WP_Query( array( 

		'post_type'	=> $this->post_type_id,

		'orderby'	=> 'rand',

		'showposts'	=> -1

		 ) );		

if ( isset( $qf->posts ) ){

	$c = 0;

	foreach ( $qf->posts as $key => $p ) {

		$f = false;

		$term = false;

		$t = get_the_terms( $p->ID, 'showcase-genres' );

		foreach( $t as $term ) {

			if( $term->slug == 'featured-themes' )

				$f = true;

		}

		if ( false === $f || $c > 8) {

			unset( $qf->posts[$key] );

		}

		$c++;

	}	

}