Nordstrom Rack carries Smashbox eyeshadows for only $7 rather than the usual $16! The colors are highly pigmented and are about the same size as MAC eyeshadows, so if you're really crafty and have the time on your hands, you can probably pop these little babies and stick them in your MAC eyeshadow palettes and voila! You've got yourself a deal!
There aren't that many colors available at a time... 7 or 8 at most, but we shouldn't be buying more than that at a time anyway, right?