Better WordPress sticky post. Screenshot: http://imgur.com/NC54e38

content.php

<article id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
    <?php
        if ( is_sticky() ) {
            echo '<div class="sticky-flag"><i class="icon-pin wiggle"></i></div>';
        }
    ?>
    
    <div class="post-thumbnail">
    </div>
    
    <header>
    </header>
    
    <div class="entry-content">
    </div>
    
    <footer>
    </footer>
</article>

style.css

article.post.sticky {
    position: relative;
    border: 4px solid #ea6060;
}

.sticky-flag {
    z-index: 1;
    position: absolute;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    color: #fff;
    background-color: #ea6060;
}

i.icon-pin {
    display: block;
    padding: 7px;
    font-size: 18px;
}

/* Wiggle animation
------------------------------------- */
@-webkit-keyframes wiggle {
    0% {-webkit-transform:rotate(4deg);}
    50% {-webkit-transform:rotate(-4deg);}
    100% {-webkit-transform:rotate(4deg);}
}

/* firefox */
@-moz-keyframes wiggle {
    0% {-moz-transform:rotate(4deg);}
    50% {-moz-transform:rotate(-4deg);}
    100% {-moz-transform:rotate(4deg);}
}

/* anyone brave enough to implement the ideal method */
@keyframes wiggle {
    0% {transform:rotate(4deg);}
    50% {transform:rotate(-4deg);}
    100% {transform:rotate(4deg);}
}

.wiggle:hover {
    -webkit-animation: wiggle 0.2s infinite;
    -moz-animation: wiggle 0.2s infinite;
    animation: wiggle 0.2s infinite;
}