Do you not have like an old jacket you don't care about or something. Liquor bottles are heavy regardless of size because they are typically made of glass. I wouldn't personally risk try them in my waistband.

I would hit drug stores(CVS, RiteAid)some stuff will probably have security caps on it but I am sure you can find a selection without any. I don't personally do walkouts anymore. So I always conceal or I don't get it.