PLEASE I need an IDEA!!!!?

I know scotch makes those adhesive picture hangers...you know the ones where you pull the tab and they come off the wall with no damage. Anyways, you said the mirror had no hooks, but if you want to take the time you could tape or glue a wire or hook to the back of the mirror like a picture frame has and then use those adhesive hooks on the wall. Essentially, give the mirror a hook and use the scotch wall hangers. They work great.