Sell em in lots of two. If a collector only wants one bottle then they dont mind paying for the shipping on both but if you have 3 bottles ...esp the soda/beer type then the cost of shipping scares too many people. Just an idea.
Not really so much about the trust. Ah just try a few. Sets of two and get some good pics. No worries after that. I will help ya if you need it. Time to jump in the pool lol