Guess my costume

My Halloween costume came in the mail today. I ordered it online last week.

My co-worker DeAnn and I decided we would dress up this year(well, she decided, and I agreedJ).

I haven't dressed up for Halloween in years. It was before my Mom died, when I worked at a non-Christian preschool and they still did the whole carnival/dress up/waste a whole day of school on Halloween thing.

They did away with the costumes at the Catholic school I worked at for fourteen years, which was perfectly fine with me because when you work with kids there is nothing worse than a roomful of kids(40) hopped up on candy and dressed in costumes. Seriously.

So anyway, I was gonna tell you what my costume was, but I decided it would be more fun if you guys guessed. (More fun for me, I mean. Probably not that much fun for youJ).

Here's a couple of clues. I'll keep adding them each day until someone guesses, but I have a feeling it won't take that long. You all are pretty smart and it's not that hard of a costume to figure out.
Anyway, on to the clues:

It's not a scary costume.

Here's your first clue:

*****Edited to add: The above is a picture of a Grandma.********

I'll send the winner a little prize in the mail!