These bottles are beautiful, I have seen them in stores for alot more than you can make them at home. "It's Easy !!!
1. Buy dishwasher safe enamel paint and surface conditioner(Like Delta brand at craft stores)
2. Primer the glass by pouring a bit of conditioner into clean,dry bottles to coat the inside.
3.Pour out any excess. Once completely dry,coat the inside of the bottles with enamel,then prop them each upside down in a jar or on a paper towel to catch drips.
4. Check periodically for the first hour, wiping any excess from the lips. Allow to dry completely for 48 hours.