Happy Birthday Butterfly Message In A Bottle Card This fun and exciting birthday card from Message In A Bottle is perfect to send to anyone who appreciates nature and butterflies. This freestanding three-dimensional card is designed in the shape of a bottle which on the inside features a beautiful design of colourful pink butterflies and displays the message happy birthday across the middle. There is space on the back to write your own personal message and white envelope for sending, which will ensure wherever this card ends up it will stand out.