Here's the answer to the question of what to do with one (or  more) balls of Kidsilk Haze ...

(and by the way, did you know that Douceur et Soie is pretty much the same as Kidsilk Haze?)

There's are a variety of free patterns on the internet for lacy scarves, and here are the ones that I found. Some may need to be tweaked a little to fit the 227-yd requirement if you only have one ball of kidsilk haze, but here they are (and of course, if you have more than that, these may work for you, too):

Cher's traveling scarf - scroll down -- this scarf takes 100 - 125 yards of a fuzzy yarn

Knitting patterns for scarves - many patterns are listed here; browse through them!

Knotted openwork scarf - takes about 220 yards of laceweight yarn

Charlene's scarf - takes 160 yards in a heavier yarn, but could easily work with laceweight

Lace Sampler scarf - a laceweight scarf that uses patterns from Barbara Walker's Treasury Vol. 1, and is very adaptable to different weights and lengths

Morning surf scarf - written for laceweight to worsted yarns, this pattern uses dropped stitches

Long-ways scarf -  this side-to-side pattern takes about 600 yards, but adjusting it is easy

Old Shale Mohair scarf - the pattern is classic, and this pattern calls for a worsted fuzzy yarn, but you know that a laceweight would look beautiful here, too

Simple Knitted Lace scarf - this calls for 400 yds of worsted weight yarn ... playing around with yarn weights and widths are a strong possibility here

Soiree lace scarf - takes 320 yards of a lightweight yarn; make the pattern more narrow and one ball of kidsilk haze would work

Madeira Cascade lace scarf - this pattern calls for 848 yards, though Stephanie writes to say that it only needs 300 yards -- and thus a smaller version would be great for 1 ball of Kidsilk Haze.

Little Leaf scarf - this beginner-level cute little scarf takes 200 yards of laceweight or fingering weight yarn (and can't you just see this in Koigu, too?)

And there you have it!  (And yes, I could easily make all of them.)  I had many of these saved as bookmarks before my computer crashed, so I thought it might be wise for me to post them here, and why not let other people see them as well?  Thanks to everybody who sent me in a pattern, and if you're interested in sharing another pattern, why not leave me a link in my comments, or email me the link, and I'll add it in here. 

Oh -- by the way, anyone who enters my little contest by adding a comment will be in the drawing for a little prize -- you don't have to know the author, just guess.  Sorry that I'm not updating prize information today -- keep tuned in for what it will be!  (By the way, all you have to do is read the comments to see who the author-in-question is that I parodied in my little contest entry.  You rock, Rebecca!)