Books in Princess Carolyn's bookcase include "How to Kill a Mockingbird," "50 Shades of Russian Blue," "Little Kitties," "Of Mice and Men," "The Great Catsby," "The Old Manx and the Sea," "The Cat of Monte Cristo," and "Best Wet Food Recipes."
Diane's birthday banner reads "Happy Birthday Diane and use a pretty font." This is in keeping with other banners that have been seen in the series where the people who make the banners use both the message and instructions to make banners.
Princess Carolyn's license plate reads "YOL9LVS" because she's a cat in an obvious nod to the popular "YOLO" for humans.
The t-shirt Mr. Peanutbutter had made reads "I had a ball at Diane's 35th birthday and underline ball I don't know why this is so hard."
Todd thinks actor Tony Curtis had a breakfast cereal that was "grrrrreat!" mistaking him for Kellogg's Frosted Flakes mascot Tony The Tiger, whose catchphrase for Frosted Flakes is "They're grrrrreat!"