Did the fairies move them?

I was in my room and on my bookshelf I made a fairy hotel that consists of a little desk and decorations and then little beds in between the books. I have two bottles of very small shells next to the desk right up against each other. So I came home from school and walked in my room and on one side of the bookshelf one bottle was on the other bottle was on the other side of the bookshelf. Do you guys think that the fairies moved them?