"I am a beginner and this one was hard but it turned out and is really cute. I wish the seller had included hints about adding the whiskers and the eyes. I couldn't finish this on my own, good thing I took a class as the instructor ended up showing me how to complete it. I found another pattern where they used a command hook on the inside of the window frame (between the glass and the screen) and a loop on the side of the cat so I could secure it in the corner of the window without damaging the frame."
Stained Glass Cat Pattern: Sun Catcher Template (PDF Download, Commercial License)