we ordered a door from Home Depot that had 5 frosted glass panels in it. Perfect for letting light radiate through, but also enough to give anyone in the bathroom the privacy they need. - See more at: http://www.thehouseofsmiths.com/2014/05/our-master-bathroom-sliding-door-basin.html#more
If you've got excess kitchen decor space, this would be a great way to rustically fill that space. u can make is as rustic as you want w/no pretty cut corners. DIY Reclaimed Wood Kitchen Sign [EAT]. I think it would look great in metal letters for a more modern look too..