One of my favorite mid-century sites is Retro Renovation run by Pam Kueber who also created the wonderful Save the Pink Bathrooms site.
I love mid-century style pink bathrooms and decided to scan some images of them from old decorating magazines I have so I could share them here (click on images to see them full size in all their pink glory!). You can also see many more pictures of pink bathrooms at Pam's "Save the Pink Bathrooms" Flickr group.
Pink Bathroom (1955):
Pink Bathroom (1956):
Pink Bathroom (1961):