2006 Hallmark Keepsake Ornament Mischievous Kittens # 8 Cookie Jar Cat Christmas. 2006 Hallmark Keepsake ornament from the "Mischievous Kittens" series. This handcrafted ornament features an adorable gray kitten with a red bow, exploring a barrel of treats. Eighth Ornament in the Series. Type: Hallmark Keepsake Ornament Collection: Mischievous Kittens Series #8 Year Manufactured: 2006 Keywords: Hallmark Keepsake, Christmas Ornament, Kitten Ornament, Cat Ornament, 2006 Ornament, Mischievous Kittens, Holiday Decor, Collectible Ornament, Gray Cat, Red Bow, Tree Ornament, Handcrafted Ornament, Cat Treats, Vintage Ornament, Series Edition