Use a small sharp punch or a nail to put a small hole in the bottom end and catch the oil draining out until it stops dripping You could also use water(in a spray bottle) to coat the headers before letting oil drip onto them That only works as long as the pipes are not hot enough to evaporate the water off of them
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)