Your mistake was mentioning they were beer bottles. Just properly package them so they don't break and declare them as "Glass" Fragile, I call mine "art". This works for all shippers including the USPS which will not ship beer or alcohol at all. Never had a problem and no one new any different.
Nothing Left to do but smile and drink beer.....
The Commune Brewing Company-Perfecting the "art" of beer since 2010