Sleeveface is a popular internet meme wherein people take pictures of themselves holding record sleeves over their body parts to create an optical illusion.
The Sleeveface blog is a good place to see some cool contributions from people around the world. The folks behind the blog have recently released a paperback book with over 200 hilarious sleeveface images. The book is on sale for $11.16 on Amazon.
You can, of course, always check out the thousands of images on the official Flickr group of the blog.