What is it Wednesday?

Oh let's have some fun......I was looking at a picture and I just couldn't figure out what it was....until I read the caption. I thought that would be fun (I think ) to do. Off with the camera I went........ So let's try it....Let me know what you think this is. No hints ..just plain ole brain creativity.  I asked every one in the house and no one could figure it out.  Better half said....you can't make it that hard.....It's not hard just a close-up of something all of us have or have had...Humor Me!.....One brain cell at a time.......