I have clear vinyl slider windows on my patio. I want to give them a colonial / french door appearance. Is there a window kit available that will enable me to attach muttons on the interior of my windows? And, where can I purchase it?

Carl Moy - I would try ( Lowe's OR HOME DEPOT ) Good luck & have a good day;;; F.B.E.

They do make a surface applied mutton, like suggested try one of the big box stores if you have one near.

Try This Web site. Add-On Window Panes, Colonial Windows, Muntins, Mullions