Does booming blade require a weapon or does natural weapons work as well?

@JeremyECrawford @ChrisPerkinsDnD Does booming blade require a weapon or does natural weapons work as well? Ex.natural weapons of alter self

— Maxwell de Vaza (@Maxwell_DeVaza) June 23, 2016

As DM, I'd allow a natural weapon (not a regular unarmed strike) to work with an effect like booming blade. #DnD https://t.co/rycTiRAANY

— Jeremy Crawford (@JeremyECrawford) July 21, 2016