- "I'm hot. This isn't fun!"
Cool Idea is a rhyming magazine story.
Duck is working hard in the scorching sunshine and decides to speed up to make a breeze. Unfortunatley, Duck breaks down and worries that he will bake in the sun. Presently, Mavis rolls by and Duck calls out to her.
It is not long before Mavis overheats too, but she manages to battle on to find a leafy glade where she and Duck rest in the shade.
- Duck's trucks disappear in the second illustration.
- In some illustrations, Mavis is puffing steam, but she is a diesel.