I don't make my own feed per say, but I do a bit of mixing.
Like the layer I buy has too little protein, and the colour of the egg yolks is not as bright orange as I would like it.
Besides that my birds get the occasional table scraps I also add 1 scoop of 50/50 with corn/molasses and 1 scoop of 20% turkey grower for ever 3 scoops of layer, and in the winter, just to help with the lack of their usual supply of protein(bugs) and due to the lowered protein level in the feed because I add grain to it I supplement them wild game meat(either ground or the scraps from the bottom of the saw). Usually 1-2 lbs per 25 birds once a week. Keeps my girls laying through their molt, and they just love that stuff and look awesome.
An old Polish fellow gave me the Idea, back in the old country he used to give any raw meat scraps to their chickens in the winter to keep them laying and in good shape.