Not the artist's title, but a descriptive one nevertheless:
Detail from The Fabulous Firework Family (1955) first draft, a hand-drawn image from the Kerlan Collection, University of Minnesota. Oddly, these two critters had nothing to do with the story, and do not figure in the published edition. (Rumor has it they were dropped from the FFF project after a pay dispute.) They appear to be wearing costumes fashioned from tablecloth scraps.