What should we get him for his birthday?
Send him 3,000 euro in Monopoly money. It's the proper way to settle the litigation.
As for the background in his bunker, I think he wanted to show that he had a large collection of WT books and material, but also wanted to make it fancier than just a bookcase lined with books. What he ended up with looks like a shrine. Any of the GB would be happy to shoot a video with that as a backdrop.
But I would advise them to wipe the seat thoroughly with a damp rag before they sit down.