A great idea for those girls who find eyeshadow fallout an aggrevation!
Shadow sheilds are disposable cotton pads that are self adhesive and are lightly stuck under the eye. Kind of like a post it note, it sticks at one end, so that when it's pressed down on the eye it creates a lip, sticking out a little to catch any eyeshadow.
They come in a pack of 50, and cost $16.95US. They can be ordered online. I'm not sure of the stockists. I'll investigate further and let you know!