Kidrobot The Ren & Stimpy Show: Ren plush. Ren was the OG emotionally unstable Chihuahua and don't you forget it! Kidrobot and Nickelodeon have teamed up to bring to life Nick 90's cartoons with the Kidrobot x Nick 90's Collection including this plushie version of your favorite chihauhau, Ren from The Ren & Stimpy Show. This high quality Ren & Stimpy "Ren" plush stuffed toy sits 8" tall and will take you back to the 80's & 90's for some much needed Nickelodeon nostalgia! Imported.