chalkboards
My office was in a room that used to be a designated classroom back in the early 1900s. There are chalkboards on both sides of the room, in each of the cubicles. It's nice to be able to step away from the digital world and work on hand lettering and drawing on a larger scale.
And, my pantry door in my home is painted so I can do the same for guests and visitors. Those kind of doors are much more fun than what is usually on the door: reminders and schedules for our busy lives.