In actual fact its quite an easy process,a biscuit tin(not plastic),some newspaper,clean bran and the cheapest big chicken breast/quarter you can lay your hands on,sit in your garage in a cool place and watch the meat like a hawk,when a large grey (bluebottle) lays a blow of eggs,say 5mm round,wrap the meat tightly in several layers of paper,a small bit of sellotape to hold it,then put a layer of the bran at the bottom of the tin,place the parcel in and fill the rest with bran,place the tin in a cool shaded part of your garden with a heavy weight on it(foxes,cats etc),leave for a week and open it,put the bran on a maggot riddle and you should have your gozzers which have left the parcel to clean themselves in the bran,when you open the tin first its probably best to look in the clean bran in the corners of the tin,just to see the maggot is out,this method is pretty well stink free and clean....
