Instructions: Nauru is a tiny island all alone in the middle of the Pacific. Today let them know they're not completely forgotten by sending the President a friendly postcard at Office of the President, c/o Ministry of Works, Yaren Nauru.
I sent a virtual pinterest quote to avoid figuring out the postage and had to settle for sending to the Executive Security.
I did learn in my research though that the waters are so deep there that boat anchors won't touch the bottom. Interesting stuff :)