And, yup, even The Simpsons has some inspiring vibes to give.
More importantly than inspiration is obsession. Music, fashion, art, flowers, bottle caps, the Olsens (sigh). A teen bedroom is basically the Holy Land for random, if not strange, obsessions.
Now what have we learned? Teens are weird, creative, have a lot of time on their hands, and should not be interior decorators. Just look at my ~teen bedroom~ :