- Oscar drives a car labeled "Grouch Taxi" in the 1981 Put & Play Yucchy Book.
- Oscar drives Cookie Monster and Herry Monster home from the Monster Mart in a cab marked "Grouch Taxi" in the 1982 coloring book Monster.
- Oscar drives a cab labeled "Oscar's Taxi Service" through a puddle in the 1989 storybook Splish-Splashy Day.
Oscar's Wacky Taxi
Main article: Oscar's Wacky Taxi