Heres a few funny pictures I found around the internet, Post a few more here. NOTE: One of the pictures I put here has a swear word, so don't look at it if you're young.
Sorry for double post, but let me try this: <a href="http://media.photobucket.com/image/funny/qteyes08/funny.jpg?o=14" target="_blank"><img src="http://i14.photobucket.com/albums/a341/qteyes08/funny.jpg"></a>
and make sure the URL ends in .jpg, otherwise it's a website you have, not a picture. To get to the picture from the site, right click on it and select "View Image"