Your Amazon problems would be solved with a regular USPTO trademark. They don't recognize common-law trademarks because they are heavily arguable in litigation.
USPTO is a database of trademarks already scrutinized by trademark attorneys and government. It's not perfect, but it is a collection that Amazon recognizes.
You can do this for $2000-ish and never think about it again.
then GS1.org for barcodes
Now you can sell your bottles in museum gift-shops!
Your Amazon problems would be solved with a regular USPTO trademark. They don't recognize common-law trademarks because they are heavily arguable in litigation.
USPTO is a database of trademarks already scrutinized by trademark attorneys and government. It's not perfect, but it is a collection that Amazon recognizes.
You can do this for $2000-ish and never think about it again.
then GS1.org for barcodes
Now you can sell your bottles in museum gift-shops!