cool room ideas?

i recently re-did my room. My walls are pink.
The 3 main colors im working with are green, pink and purple. I want ideas of what i could make or buy to make me have a "cool" room. anything helps! thanks :)

Answers:
I'd do a green comfortor and funky shaped pillows of these three colors and maybe some black or white ones, too.
Black and white striped stuff would be cool.
Drapes with a pattern on them of these three colors would be pretty cool.
Paint your furniture all black or all white. (if you're allowed to).

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Ikea has some ideas that you may like:

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