Mine were the bottom of my shoes (which I also decorated myself). If the soles of your shoes aren't blue, you could easily find a blue sticker or something to put on the bottom of them to be your something blue!
I don't have a picture, but I wore my garter which had a blue ribbon on it.
My step mother sent me my father's favorite old jacket that happened to be blue. I had a pocket cut out into the shape of a heart and it'll be sewn into the inside of my dress right next to my heart. He passed away in 2008. That will be my something blue.
My bridesmaid dresses are bright blue..does that count?
I am going barefoot so I will probably paint my toe nails blue......& I have a blue floral dress my Nana made me when I was little that we are taking a piece of the fabric and sewing it into a heart shape on the back of my dress. She cannot make it to the wedding since she lives to far for her to travel due to health reasons so she will be there with me that way.