Memorial on the Back Window

I don't know if this is just an East Texas thing, but I have never seen it anywhere but here. I constantly see cars (pick-up trucks and SUV's mainly) with memorials on their rear window. It usually has a cross or sunrise with something like: In Memory of my Mother,(place name here). I guess they really miss their loved one, to put a memorial on their window so all the drivers in town can see it. Now I've seen crosses along the road, every place I have lived, California, Louisiana, Montana, Texas, but have not seen this. I don't feel the need to do that, but I wanted to comment on this since I thought it was a little odd. My sister died in a car accident on the California-Nevada border, but I have never felt the need to put a cross on the location. That is another odd custom. But maybe people think it's odd I have a USC and BYU-Idaho sticker on my truck's back window. Oh yeah, and a Roar with Gilmore sticker. So if you see that truck around town, you know it's me.