I have some hand embroidered blocks made by my grandmother. They are on Batiste also. I hand washed them and then added them in a quilt as is. I used Warm and White for a batting and I'm hand quilting them closely to stabilize them. They were very dirty and musty after years in the attic. They survived soaking them in Biz and hand washing so I used them in the quilt. I wanted to keep them like Grandma made them. I also thought that if they didn't survive the washing...I wasn't going to use them in a quilt. Another idea is to wash them by hand and frame them to hang on the wall. They would be protected under glass.