Spring ?

With the last 2 weeks intense cold weather, not inclined to go out, I decided to throw away things that are unnecessary in my wardrobes, cabinets, drawers, almost a Spring cleaning, (I leave this part to subs but not for my personal things.) And I found this in my cluttered wardrobe, I have this for the last 10 years. I broke the right side for pressing too hard and cover it with tape. Who knows what that is?