Here's the bathroom in 48. I made the glass window by using plexiglass from HBS/miniatures.com and using channel wood. I used a 1/4 inch channel wood (from HBS) as the track on the top and the botoom, and I glue narrower channels around the plexiglass to make the sliding window. The glass window slides out so they can access it.
I also made a colorful curtain to give them some privacy from the others in the house - as opposed to all the strangers that can just look in through the glass wall - I guess they face an ocean. :)
I used a bamboo skewer stick as the curtain rod.
Have a great weekend!