Even better than sliced onion!
Check out this product that won the Kokuyo Design award. Can you believe it, its a post-it pad!
Very clever idea, where the page layers are made of thin transparent material with printed coils made to look similar to that of an onion. So when you peel off a slice it looks like you would have an onion slice stuck on your wall or monitor.
I like the fact that the product has a life on the stack as a pad, and also when it is peeled off individually.