The Com-beros. (It rhymes with Camaros, actually).
The funny thing is that he had mastered the word Convertible last summer but since forgot how to say it. I think he secretly knows, but he also knows I think it's cute when he messes words up. So for now, we're on the hunt for those things. Com-beros and com-ber-bobbles, and especially bom-curvables.