Originally Posted by
macaron95
absolutely
i can't remember the name of the airline, but i saw them once, some kind of colorful sticker to put just on top of your bulkhead
Many airlines do, I quite like KE's as their pictorials are cute. That said I prefer the human touch: for instance on BA's cwlcy, purser asks every passenger if he/she will want to be woken up for breakfast at the time they take the menu orders.