Just select style-add to cart & write the following in the notes to seller during checkout:
Size:
Aunt/Uncle/Grandma/Grandpa-version you'd like (buy "bulk package" for up to 5 different names):
Due date:
Families last name:

-To add more than shown in sample, change colors, add/edit graphics add to cart as custom. To change more than one of these add as double custom.