So i got a hold of an old copper harmon mute. It belonged to my friends grandpa. His grandmother had given me a couple mutes and a trumpet when he passed away. I have had it for a couple of years and its in ok shape considering its age. I just need to re apply new cork. I know where to buy the cork just my question is what type of glue do i use? And any additional tips on re corking a harmon mute. Thanks guys!