I worked in a packing plant known for butchering bulls for hamburger and they’d pack the bull fries in 25 lb boxes. We had a huge walk in freezer full of several thousand pounds that some Polish outfit in Chicago bought for their beer festival. They were thrilled that they were able to purchase so many. Never had them ain’t about to start.
The whole time some little kids that lived nearby would be squatted beside the cattle chute with a shoe box where they deposited all the fresh "mountain oysters" to take home for frying.