Looking to announce a pregnancy this Halloween and want to do it in a special way? Does your precious little "vampire" have a big secret? Is he about to be a big brother and wants to have some fun letting everyone in on the secret? Then this personalized front and back design adorable big brother to be t-shirt is the one for you! The front features the message, "knock...knock... who's there?" , then the big brother to be turns around and the secret is revealed... "a new baby brother or sister for me THAT'S WHO! (I'm going to be a big brother!!)". Perfect for a pregnancy announcement, new big brother to be gifts, and more! Sit back and enjoy the fun while family and friends figure out what the shirt says! Everything is completely customizable from color, to wording, to design! Just add your custom requests to the "Special Instructions / Notes" section when ordering. This digitally printed t-shirt means that the fibers of the shirt are actually dyed with eco-friendly water based inks and is printed on a superior quality, super soft t-shirt for long lasting durability.