Pink flamingo card. Pink Flamingo Beach Signs Greeting Card - Birthday. This pink flamingo greeting card features a pink flamingo with a tropical drink. He is leaning on a stack of beach direction signs. Inside it reads, "All signs point to a very happy birthday! Cheers to you!" The card measures 5" x 5" and comes with a special decorated envelope that brings the mailing size to 5" x 7". Printed in the USA on recycled paper.