Hi Linda, it took me a minute to find this round up but there are SO many great ideas in here! https://cutediyprojects.com/home-decor/30-diy-craft-projects-using-old-vintage-windows/
I love using an old window on a console table as a 'background' behind all my other decor items. It adds a little dimension and texture.
Here is a post that might help you - https://www.bhg.com/decorating/do-it-yourself/accents/decorating-with-old-windows/
Linda: here are two ways that I've done it in my own home:
Here is one of my favorite ideas from my DIY blog https://www.homeroad.net/2017/02/making-window-shelf-with-old-chippy.html#more