An idea that came to me when reading up about the history of cartooning. Exxon once had the motto "put a tiger in your tank" and a tiger mascot, a bit like Kellog's more enduring Tony the Tiger. Here we have the Exxon Tiger (c. Exxon Mobil) having mixed feelings about the ad man's new idea to visualize the rejuvinating power of their gasoline adatives. It could be worse - a tied-on cloth diaper is more the cartoon standard and more period-appropriate, even though they did tend to fall off at the wrong times.

I think I went with a disposable because they are partially petrochemical products.

If he gets too made, he could always put the ad man into a comma with the comically massive lollypop.