Buratino and chicks with equations
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/simonblink24">https://www.flickr.com/photos/simonblink24</a>
CC BY-SA 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/simonblink24/5032272747">https://www.flickr.com/photos/simonblink24/5032272747</a>