I now have a wall like this in my office, though much more spare at the present. I just print out inspirational quotes and pretty things, dig up old photograph, or ripe out pages in magazines and tape them up on the wall. I would use washi tape in white.

The New York apartment of stylist Marcus Hay. Photo by Jonny Valiant.

The New York Apartment of Stylist Marcus Hay {Ideat Magazine}