Want to have fun with your kid? Get them that space cat. -inspired Goose the Cat DIY puppet. In celebration of ‘s digital Blu-ray release on June 11 (as well as this week’s #NationalCatDay), you can follow these easy steps to create your very own Flerken. The best part? You probably have all of the materials at home already. Simply print the Goose image, and gather some construction paper, a paper bag, colored pencils, a black fine point marker, glue stick, and scissors, and you’re good to go.