Here is posting using Tampons --I prefer this method as its fast, and if you use 3M low tack tape, (instead of sport tape) it breathes and easily tears off when changing the posts. I do not like having scissors around their ears, I have heard so many horror stories of "oops the scissors slipped" so if you use low tack tape you can gently tear it off.
I WANT TO STRESS THE GORILLA TAPE DOESNT TOUCH THE HAIR/SKIN OF THE EAR!!! ITS TO STRENGHTN THE TAMPON OR ROD, or wrapped on top of low tack tape.
Start with a tampon that is the length of the puppies ear, here is pictures of a tampon, and 2 types of backer rods, one bigger, one smaller, already stiffened with Gorilla/Duct tape
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Take the tampon, and tape the top to the bottom to length; pulling some fluff out-the bottom; the fluff protects ear canal and absorbs moisture.
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Backward wrap painters tape on the tampon, (or Backer rod) and insert in ear, fluff side down. If using Backer rod, insert with a side down that you cut half off, so it rests gently in ear canal.
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Have strips of tape ready, and stick the tampon in the ear and wrap top, then bottom, do other ear, then add more tape all around. I don't use a bunch of tape until the tampon is set right, so I can adjust it if necessary.