Now for the marker surprise! Not my original idea. It was either this or a MOPAR "M". I went with this because it was more the shape of the window than the "M" would have been.
I got a set of stickers made to the dimensions of the window. (Thanks again JDubya
for the hook up
View from the inside:
After I scuffed one up with sand paper:
After they were both sanded I applied tape to the inside so light would only shine through the sicker and not glow around it:
Once they were painted and dried:
And with some back light: