I noticed that lately there has been interest in finding a panda in a large array of snowmen in this post. There was also this post where you have to find a cat amidst a great deal of owls. I started thinking about how I could make a similar game that is randomly generated. I ended up with the following HTML5 version in which you have to either find the one face with a nose or the one face without a nose:
Here is a link to the actual page. Let me know what you think!