My theme[s] would probably be Rock related things, and bright, colorful, kiddie things.
90% of the things on my wall are rock-related. Music posters, mainly. I've also got this small section of one of my walls that's becoming this big collage of pictures and quotes from rock stars I like that I cut out of magazines and newspapers.
Also, alot of the jewelry that I own is bright and colorful plastic, and it looks very little-kidish. ^^ It's just so cute.

My theme..?
hrm. Most of my 'themes' are colour based. (Depending on what it is I'm theming..)
But I geuss I like panda's. White and black with cute faces. :3
Awesome.
If I could change my wallpaper in my room from Flowery Old-Fashioned Design, to a Panda Black & White Design, I'd die happily. 8D
Unfortunately, my house is COVERED with the usual floral design which makes my house look like its hundreds of years old. D;

I don't know that I have a theme per se, but I have several plants both indoor and out and I have a fae calendar and a bunch of dragons sitting here on my desk.

My house is not much different really. I have a light teal color in the living room, regular white in the kitchen with a red toaster and white appliances, but no real theme like apples or anything.

hmmm. . . my theme is PURPLE!!!

Almost everything in my room is purple or white. except the lava lamp. that's black

I have no theme.

I am a theme... if that makes sense?

Oh yes! Emily The Strange is my theme.

This year, on my birthday, I recieved 3 emily the strange wallets, 2 emily the strange bags and an emily the strange t-shirt. All from different people!

Shocking yeah?

hah! I just remembered, a friend of the family collects Angels...

Or angel figurines and such... My mother says her whole house is filled with angels, even her kitchen cabinets, the bathroom, and such.... She says it's scary just being there, all because of the angels ^^

cats :) and animal print :)
my living room is a jungle kind of theme...not tacky jungle though, lol

My theme is usually Rainbows and dragons/tigers. XD My birthday cards always have really pretty rainbows and dragons on them ^_^

Tartan, ftw.

Can't help it, I just love plaid things. Especially if they're Royal Stewart [the red one that punks like - and I'm a bit of a punkish person myself XD], Buchanan [love those colours *_*] and Forbes ['cause that's my fiancé's family tartan :wink: ]. I have plaid pencils, tops, skirts, pants, bedsheets, bags, notebooks, pencil cases, binders, cd boxes, scarves.... And some more stuff I don't even remember about XD

I have very complex theme. I love anime, Manga, fantasy and pretty much everything that deals with the imagination. My room is a typical fairytale with dragons, fairies, disney statues, Narnia figures, manga every were you could imagine, books, and so on. I mean it is a dream room for any child. I am just a child at heart. Since I live with my parents I only have that one room and it is all mine. :)

I cover my room with pandas. That's pretty much my theme, I suppose. It's very black and white. xD

whats a theme?

I guess the theme in my room would be Ikea since everthing in there is Ikea xD

That place is like my heaven <3

Music is my theme. My whole room is nothing, but music posters, things I’ve gotten signed by bands, flats, promotional flyers, banners from radio stations, CDs, and some DJing equipment.

Gothic style, Lolita style, Gothic Lolita style xD
And I find practicly any Anime/Manga thing adorable.
Anything Japanese style too.
Someone told me I'd be really easy to buy presents for, since I was constantly linking "CUUUTE" things to him~ xD
He called me Rena from Higurashi, she often says when she finds something she likes "So CUTE! I wanna take it home!"
Made me laugh when she said it about a rice cooker xP

Uh, I don't have a particular theme, but one room in our house does. It's a mediterranean theme, you could say, I guess.
If I had a theme, it would involve fish!

Right now, I love everything dark red or skyblue. So i guess that's my theme. Actually, I'd say my theme is Autum. My birthday is 9.9. so maybe that's why i love autum. I also love everything furry. i love my big white furry hat with ears on it <3 Everything japanese, or Lolita/gothic lolita is also loved. So my themes are... Autum, furry, japanese, and Lolita/gothic lolita. ^^

Blue Rose. My favorite thing of all time. I used to dye them blue until they came out with genetic seeds for actual blue roses. I still dye occasionally, but I mostly grow the blue roses now.

Um...I don't know about 'themes' but my obsessions are Harry Potter and anime. I guess a theme would be how people see me or something? Well most of my presents are either girly, silly or creative...my friend bought me finger puppets!

Panda's. Anything that I get usually has something to do with a panda.

Colorful, thats the only way I can describe it xD

My room..kind of looks like a really girly attic.

Black and yellow stripes, since it's on my favourite stuffed animal, Bubbles the fish. xD<3

Anything artistic, I love the artistic vibe and thats how a prefer my room to be. I don't like the plain dank room, I like it to have a punch in it, interesting, and original.

*singing "Clowns" by Tatu*

Don't you hide your eyes from me! Open them and see me now!

*end singing*
Oh, you meant PERSONAL theme?
I'd say fantasy...And cats...Oh and randomness! :D