Say Boo and Scary On. Halloween Party Poster with Handwritten Ink Lettering. Modern Calligraphy. Typography Template for kids t-shirt, Stickers, Tags, Gift Cards. Vector illustration Shutterstock .eps vector - Say Boo and Scary On. Halloween Party Poster with Handwritten Ink Lettering. Modern Calligraphy. Typography Template for kids t-shirt, Stickers, Tags, Gift Cards. Vector illustration - ID: 718907830