Years ago i was very friendly with a man who had a fish van and he would leave me a big bag of fish guts and heads and what he couldn't sell in the telrphone box at the end of our road, and i would pick them up on my way home from work. They looked really well on it but you had to muck them out a couple of times a day because they did stink a bit. The phone box was very aromatic as well, especially in the summer.