Cosmetics company e.l.f. is offering a free 27-piece makeup kit with any purchase. Use promo code LOYAL at checkout and it will automatically be added. You still have to pay their $7 shipping fee, but many items on their site are just $1, so basically you can get the makeup kit, plus another full-size item, for $8.
They also have some great stocking stuffer kits for $3, which would be quite handy for any Secret Santas or office gifts or "Oh! You got me a present? I... left yours in the car. I'llberightback" moments that we all treasure during the holidays.