Explaining to my 4 y.o. that once you mix 2 or more colors of play-doh that they are forever then enjoined prompt...

Explaining to my 4 y.o. that once you mix 2 or more colors of play-doh that they are forever then enjoined prompts a genuine look of confusion & mystery. She knows the drill, however cannot help herself from marrying the colors into this blob of brownish green yuck that reminds me of Classic Horror Hit Movie called 'The Blob'. We have a whole miniature 'blob' community at our house. She keeps cranking them out; my words are just squawks on the wind.