Dave B.
My prayers have been answered!
I've dived "stingray city" Grand Cayman. All fisherman moored at roughly the same spot to clean fish. Half the discards were caught in the air by gulls. A diver got curious what happened to the other half?
I regularly buy 16 lbs of chicken bones for a song at Berkeley Bowl, all the customers who can't bone a breast subsidize my stock. I've asked many vendors over the years what happens to shrimp heads, are you crazy?Save them to sell for stock!
Two 5 lb orders of 4* shrimp heads made over six liters of wonderful shrimp stock. Do not hesitate! This has to stay a thing, vote with your stomach!