Mini-Me's Room

We're moving in in less than a month and I'm still trying to figure out what I want to do with S's room.  She alternates between wanting Hello Kitty and a "princess room" (sigh).  I've actually seen a Hello Kitty princess line but haven't located accessories for a room yet except for these wall decals.  I did find some sites selling fabric from Liberty of London, which I LOVE, but it's a cotton lawn, apparently.  I had no idea what that meant, but apparently it's a very sheer fabric.  We need a headboard so I was thinking about making one out of the fabric, but I'm not sure if it will hold up. 

Cool fabric, right?

or this one -