Secret Admirer??

I was out of the office on vacation last week (my COUGHbirthdayCOUGH occurred during that week too). When I came into work today, I found a present on my desk.
I LOVE IT!!

There was no note and no indication who this was from. I thought it might be from either my friends Ellen or Diana, but both say it wasn't them. (They are big fans of "Keep Calm and Carry On" stuff.) OMG, I have a secret admirer!! At work!! I feel like Cindy Brady! I wonder who it is?????????? I would love to know, just so I could know who to thank!