Should play dough be capitalized in sentence?

No, "play dough" is not capitalized in a sentence unless it's the first word of the sentence or part of a proper noun.

Here are some examples:

* Correct: We played with play dough for hours.

* Correct: The Play-Doh factory is located in Ohio. (Play-Doh is a brand name and therefore capitalized)

* Correct: Play Dough was a fun activity for the kids. (Play Dough is the first word of the sentence)

Let me know if you have any other questions!