Fairy Light
(Adobe Photoshop 7 Effect Tutorial)
This effect works well with mystical themed wallpapers!
5: Now, to fancy-up the effect a little more, duplicate your curvy line layer and Filter > Blur > Motion Blur: 30º, 200px. Duplicate the motion blurred layer again, and Edit > Free Transform and rotate this other layer in a creative way. I suggest that you also try Filter > Distort > Pinch: 100% for more fluid motion blur effects.

