Published at Wednesday, July 11th 2018, 02:57:29 AM by Kelly Mullins. Shower Curtain. Many people are choosing to use retro style shower curtains because of the novelty of them. Retro style shower curtains may be flowers, circles, squares or anything that may have been popular in the 1950's through the 1970's. They come in many different colors and bring back a feeling of nostalgia to adults who lived through those decades. These styles can also appear somewhat modern in their style but be not fooled, they are definitely retro and a true love child will know the difference when they see them.