You can go to any pet supply magazine and find ear hair pullers. They look like hemostats you see at the hospital.
If your afraid it will hurt him, you can try putting some Ambesol in his ear to numb it then do it. They say do this to your eyebrows to numb them before you pluck them. I just wouldn't use very much and apply very carefully. I think it would be worse to have my ears numb then have them plucked.