Nerdy but Elegant!

Hi ladies!
My fiancé and I are quite geeky, and we want to find an elegant way to infuse our interests into our wedding decor - our favorite weddings were really personalised and reflected the couple! I’ve been scouring the Internet for ideas specifically for table decor but I don’t want to go too tacky/in your face about it. I still want our wedding to have a pretty/elegant atmosphere, so subtle is good. I’m struggling to meld the two! We love all things Harry Potter, Lord of the rings, princess bride, Star Wars, game of thrones, etc. I know we’re going to use a “always” cake topper from Harry Potter, my processional song will be the “storybook love” theme from Princess Bride, and we’ll have a sign to our reception room saying “no admittance except on party business” from the lord of the rings. So we have some ideas in place, but it’s the table decor that I’ve been uninspired about! We will have long rectangular tables that will seat about 10 people each side. Any brides pull off an elegant/geeky wedding!? I’d love to see your creations! Thanks in advance for your inspiration!