I would like to know can i purchase window muttons for my glass sliding door in my kitchen, also is there a web site that will allow me to look at window muttons and where i can purchase them here in michigan at any of our home improvement stores.:confused:

You could try the following search. That would be one way to find a place.

Window Muttons Michigan - Google Search

Perhaps someone will come along who does live in Michigan who will answer your question.

I've been searching for the same. Try this web site. Add-On Window Panes, Colonial Windows, Muntins, Mullions