Mulberry Art Studios has a lot rooms available for weddings and showers. The rooms are all different sizes and it's a gallery so there's always beautiful art hanging on the walls.
I had my bridal shower at the Amish View Inns and Suites. It is really nice and they provide food. We choose the tea for my bridal shower. It was really nice and convenient since half my family was coming from New Jersey and half from western pa. It is right on the Old Philadelphia Pike.
Re: Shower location Lancaster area
Depending on how many people and how much you want to spend as well as whether you want to do your own for or have it catered.
Pemberly Tea Room on Mulberry street. Owners use only local items. Eclectic atmosphere. Not available on Sundays.
Pheasant Run B&B- the owners are very sweet and help as much as possible. The venue is a redone bank barn which opens on to a brick patio.
https://www.pheasantrunfarmbb.com/ReceptionRoom.html
DO your own food or have it catered. they have a full kitchen
Symposium restaurant
https://www.symposiumrestaurant.com/banquets.asp
Dutch Apple Dinner theater --the Encore Room- contact Dave Lafferty
https://dutchapple.com/cateringfunctions.htm
Fenz- private functions can be done on Sundays only I think
https://fenzrestaurant.com/
Lancaster Arts Hotel
https://www.lancasterartshotel.com/html/lancaster-gatherings.asp
Fulton Opera House- there is an area for functions...two different ones I think, but I can't locate info on the website for it.
I have never been here but have heard many rave reviews. https://wishyouwereherepa.com/aboutpage.htm#party
The Flour Child- yummy bakery in Columbia that has a couple of spaces that she rents out.
https://theflourchild.com/
Hopes that helps