Thanks everyone!
I'll definitely make sure to use neats foot oil. That's probably where I went wrong last time as I just used the leather cream I had on hand, which did not work nearly as well as I had hoped. Do I have to oil both sides of the veg tan or just the grain side?
I'll probably use dye as well like BlackDragon mentioned. Another stupid beginner question, but is a finish like tan kote sufficient enough to prevent dye from rubbing off? Or is there a better alternative for tack? I take pretty good care of my leather tack, but I want this headstall to last.
Sorry for all the questions, I just want to make sure I have a general idea of what I'm doing so I'm less likely to make a mistake.