I need some idea's for funeral songs

Ok well as some may know a relative of mine just recently passed away and in there last requests asked for me to play at the funeral instead of what ever normally is there. So I need idea's for a song or so to play there in honor of her. I believe the reason she wanted me to play is because she was the one who taught me how to play guitar.

So I need some meaningful songs nothing ignorant that you wouldn't hear at a funeral. can be a full song or just a guitar. I really need to have some idea's by tomorrow so I have time to memorize them etc.

I was already thinking about eric claptons - tears in heaven
but any others?