I would LOVE skin designs right now. If you've got a nice idea for a skin feel free to mock it up and post the mockup images for it. If it looks interesting I'll consider turning it into a real skin, ESPECIALLY if it break our de-facto traditions on what makes up a wiki skin. Our rigid skin structure is one of the big limitations of our skinning system right now, skins that define things beyond the current restrictions are good examples needed while we break open the rigid structure of our skins.
Have you seen the skin on the DD-WRT wiki? They designed it to look like their UI,
Cheers, -- jra