Think about the ideas they can do with this, advertising on the pillow cases, logo themed blankets, either the airline or sell the spots, FA
's aprons sell advertising there, pilots cases they carry, another spot to sell, beverage cart advertise on the sides of it, cups, napkins, swizzle sticks, back of boarding passes, signage at the gate, this flight brought to you by Coke, the official drink of DL
, overhead bins, outside of course more costly, inside less money, seat belts, both the belt part and the buckle could all be sold, seat fabric, do like Western Pacific sell the outside for advertising. Advertising on the outside of the bathroom door while people are waiting. If they still had the curtain between first and coach you could sell that as well, coach side different ads, first class more expensive products.