Or Back 2 Mac, Macs recycling program, where you can return six empty containers in return for a lipstick, or now an eye shadow (only at Stores, not counters).
It's been changed a little bit, you'll now need to have the METAL pan(LAME, I know.) along with actual pot. But you can always just buy metal pans for a little price, and fit it back in there ; ) tricky tricky.
You can also return Mac wipes, or any other product that has plastic(lipsticks, glosses, paints, etc.) on it.
Holiday sets, like with pigments and lipglosses, you'll need to have the WHOLE set in order to get a B2M point.
lalala-lameee...