Thank you all for the feedback. In terms of what to put in: the box is big enough to hold pens or pencils, the usual sort of thing one would find on a desk. Of course, it's mostly decorative, but I think on an executive's desk it wouldn't have to do much anyway.
To give you some idea of size: with the lid on, it's about 10" tall in total, and the box has an internal diameter of about 3".