I, too, was an avid reader.
My grandma got me the condensed (or compact) OED when I was six or seven. I read it cover to cover. I often joke my vocabulary was better when I was in the second grade than it is now. It did give me the audacity to call one of my teachers senescent.
I was never a big collector of Trek/sci-fi paraphernalia, but I did have a model of the Ent-D that did full saucer-separ. I took it with my everywhere until one of my friends lost the stardrive in the woods.
I've also been fascinated with fighter planes all of my life. I use to doodle them all the time. My parents still have some of the drawings I did when I was in kindergarten.