WordPress shortcode for H tags.

gistfile1.txt

// Headings
function heading( $atts )
{
    extract(shortcode_atts(array(
        'tag' => '',
        'text' => '',
    ), $atts));
    return '<h' . $tag . '>' . $text . '</h' . $tag . '>';
}
add_shortcode('heading', 'heading');

You can use these in the dashboard editor 'Visual' Panel like so:
[heading tag="1" text="H1 Tag"]
[heading tag="2" text="H2 Tag"]
[heading tag="3" text="H3 Tag"]
... And so on