Here is an idea that JD and I threw around a few times but never got to it until one of our customers requested it -
a plug lip sample pack!!! Each lip is individually labeled for the novice plug builder. Great to keep around the shop as a reference when it comes time to place an order or test out which lip fits that new plug creation you just spun on the lathe.
Only question now is how long will it take for this idea to get copied!