You won't be able to get drunk off this six pack, but the ABS fumes may give you a hangover-like headache. Print the whole thing in one go, if you dare. Or you can print the holder and bottles separately. I printed the bottles with zero infill and they came out perfectly. I may modify the bottles to have removable caps some time soon. Kill your bottle print a few layers early and they'll stay open and become ear-piercing musical instruments. I'd love to see the bottles printed in translucent green PLA, but I don't have any.