David M. wrote for advice on removing corks:
Cork is the best material to use on your rotors. In my opinion, neoprene just is not adequate to preserve the flavor and bouquet of the fluids you have been aging in your horn. Neoprene imparts an artificial taste to the green goo, so the connoiseur will always insist on cork.
There are those who accompany the removal of the corks with much ostentatious display, offering the them to the players to inspect and sniff. Unless the player is an expert (or the horn a vintage Chateau Courtois single from the Burgundy region of France) there is little point to this. You can remove the corks yourself, using the handy tools that are available at fine horn stores all across the country.
Generally, two kinds of cork are used. The ordinary straight cork involves little danger in removal. However, some corks have bulging, rounded ends, and are secured tightly to the instrument with heavy string or wire. This is a sign that the contents of your horn are under pressure. Simply loosen the string or wire, aim the corks away from you, and rotate the rounded ends. Each cork will fly from your horn with a loud pop! Decant your rotor fluids into a tall, fluted glass, and - viola! - down the hatch! This is a superb accompaniment to a meal of voles, shrews, and/or stoats. If such small woodland creatures are unavailable at your local grocery, or if you are a vegetarian, Oreos are really a super substitute.
Bon apetit!
Gotta go,
Cabbage