Nice work Tim. What is your primary stain?
I start with a mixture of Sunshine Orange and Golden Yellow Rit dye, more yellow than orange,sometimes with just a little black in it.. I bring it to a boil and then put the horn in until it is in the range of color I am looking for. After I take them out, while they are still hot, I put on a coat of alcohol based leather dye, Saddle Tan, Mahogany, Dark brown or sometimes a mixture of two or three, put it on and wipe it off, See if it suits you if not put on more until you get the color you are looking for. Rub it out with 0000 steel wool and wax. I have tried acid, onion skins, wood stain, leather dye by itself and a number of other home made mixes to color horns but this seems to work best for me.
Tim C.