A "Happy Birthday" sticker is a fun and expressive way to celebrate someone's special day. It can be used to adorn birthday cards, gift wrapping, or party decorations, adding a touch of joy and festivity to the occasion. These stickers often feature colorful designs, cheerful messages, and vibrant graphics that help convey your warm wishes and make the recipient feel extra special on their birthday. So, whether you're customizing a birthday gift or decorating a birthday party, a "Happy Birthday" sticker is the perfect accessory to spread happiness and celebrate the day in style.