What Christmas present do I get for someone who already has everything?

Fun for the whole family!
A lie detector style board game would be a big hit at any kind of sociable gathering, and would be particularly suitable for those who have a public image, or who are regularly confronted with personal and difficult questions.
Why a a lie detector? Well you could pre-record a bunch of tough questions, and have hours of fun, questioning and cross questioning. Or plug two people in, and go head to head.
With lot of practice, eventually you will be able to say anything!