I desire to ship to them a piece of barn wood, specially distressed so that a black felt tipped pen can write on it. The goal being that as they connect with fellow bitcoiners or others, they'll have the option of signing the board. Once the couple settle into their first home, they'll be able to hang the board from the ceiling in such a way to enable them to view the signatures and notes on the front, back, and even on the one inch sides.

The length of the board will be predicated on the maximum allowed dimensions that can be shipped. The width will be six to eight inches, having a one inch thickness. It will be distressed in some shade of antique white. Maybe having a package of multi colored markers on hand oppose to only a black one would be a better idea.

Consider it a memento of the trip for years to come.