Happy! Happy! The 1990s Nick cartoon character Stimpy's tagline predates everyone's favorite uncle on Duck Dynasty. Fans of the 1990s animated TV Series Ren & Stimpy would love this adorable ready-for-Christmas Stimpy ugly Christmas sweater. Now you can combine your love of Ren & Stimpy with the ugly Christmas sweater of the holiday season when you dress to impress with this ugly holiday sweater this season.