I always have a room that is mine. That room typically strikes others as surreal. In addition to blacklight posters (mostly fairies and Alice in Wonderland theme), I have a hippie and yin-yang throw blanket pinned up (the yin yang one is actually on the inside of my closet door so I only see it when the door is open, which it's currently not).
I used to have a poster board I made with several bumper stickers on it in support of various liberties with a slant toward the humorous and snarky surrounding the pic (color copy from a game rule book) of a ghaele eladrin (a fictional celestial/angelic race in D&D 2.0 Planescape that fought tyranny and social repression wherever it was found in championing the values of
Chaotic Good) which was sort of my icon to help me feel sanctuary against society. Since I got older I started cringing a bit at it and got rid of it, but I saved the eladrin part and she still hangs on my wall, and now I also have a sticker of Kim Possible as well (which has a symbolic meaning for me, but I don't feel like explaining it), and a pumpkin sticker (as October is so important to me as described in my poem
here).
I have many other eye catching pieces in my room, like my lava lamp and lamp that doubles as a sculpture of many mushrooms (and I have a black light of course), and what gets the most comment (or question for those not familiar with the works of Lovecraft) is my futon with Strawberry Shortcake blanket with Cthulhu plush toy (and also slippers) on it.
But I prefer to keep things tasteful and minimalist to the rest of my home, though I have a preference for paintings of beaches and oceans, not sure why, including stormy ones, and I'm also a sucker for flower motifs (wallpaper, dishtowels, carpet rugs, etc), though not in my room itself (and I'm not even sure why). Though if I ever became wealthy I'd like get many paintings of
Tanning.