Can someone (pretty please) help me think of a good gift for my dad's birthday?

Buy him a book by a Polish science fiction writer Stanisław Lem. For example - "Solaris", "Eden", "The Invincible", "The Cyberiad", "Tales Of Pirx The Pilot". He will love it. Buy him an album with science fiction inspired art - examples: Infinite Worlds: Fantastic Visions Of Science Fiction Art by Vincent DiFate, Sci-Fi Art: A Graphic History by Steve Holland, Art Of Imagination: 20th Century Visions of Science Fiction, anything by H. R. Giger. Buy him "Blues" CD by a Polish group BREAKOUT, because I don't think he have it in his record collection. Ask in various record shops and maybe they can get it for you. The one with a black and white photo of a long haired man with a guitar and a small boy walking hand in hand.