At one time you could buy small jars of Cockles from behind the Bar at our local.
One of my pals used to empty the lot into his part finished pint glass and down the lot in one go with his Beer. !!
I've eaten tripe & onions...just the once though...they made me gag:-(. My father when he was alive used to eat; pigs trotter, chickling & bag, beasts heart, calfs head & to round it all off...sheeps brains...Does anyone want to come round fore their tea.LOL