This I found calming:
If you're from Auckland, you can get these blossoming tea flowers at Tea Culture. Here's the direct link to the flower page.
ps: sorry guys, YouTube and Blogger won't let me make the size of the video smaller ... but if you right click it, there's an option that takes you to the YouTube site [click "watch on YouTube"].
Edit: Another calming video that I like [The Humming Chorus, from Madame Butterfly]