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 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.