You have to make blue icons.
Not only the color, you can also go with the mood.
If you choose the color, it doesn't mean your icons can't have no other color.
Just make sure blue is the main color.
-you can submit up to three icons
-icons have to be LJ-standard, 100x100, not more than 40kb big
-animation is allowed
-you can use brushes or textures as you like
-don't submit an old icon, create something new
-post your entries in a comment to this post, with img src and url please, comments will be screened
-don't show your icon anywhere else until the winners are announced