Chest opener class

I would like to do a class on opening the chest, but I have a pregnant woman. Any ideas of postures that are good chest openers without big backbends, or is there ideas with variations for pregnant women? The reason I thought to do chest openers was because of the hair dresser who I talked about in last post. She is quite hunched over, and I have some others in Odessa who also have hunched backs & shoulders forward. If you think I want you guys to suggest poses so I can create a class and don't have to do it on my own, you are right.....Thanks for any input.
Roberta