A grandfather is one of life's greatest gifts. Make his birthday special with a handmade card! Let grandpa know you're the lucky one to have such a great guy in your life with our charming selection of humorous and heartfelt cards. Check out our grandpa birthday card selection for the very best in unique and handmade pieces. For many people, grandfathers are the people who share some of life's most important lessons. If you cannot imagine your life without your grandpa, make sure you let him know how important he is to you with one of our many birthday cards.