Gel Gems Carousel Giant Bag. Colorful, fun and reusable, GelGems® are a dynamic new way to express yourself, decorate your surroundings, and provide a fun holiday kids' activity. These thick jello-like window clings stick to your windows, mirrors, computer monitor or drinking glasses - any non-porous surface. Use them at home or at work to show your holiday spirit and creativity. You can cut them into new shapes or combine packages to make your own unique creations over and over again. Gel Gems may pose a choking hazard to children under 5 years old.