Hagrid had a pumpkin patch outside his hut, and he gave the pumpkins some “help” so that they were large enough to walk into by the Halloween feast; pumpkin juice and pumpkin pasties were favorite Wizarding foods (SS6, 7; PA16, 21; GF27)

Pumpkins was a coined term for the dummy "Fat Man" bombs dropped on practice missions by the 509th Composite Group. They were mustard colored and were of the approximate size and weight of the "Fat Man" bomb.