On bottles

Way back when I first started brewing, I used to buy beer in these green bottles that were thicker than standard bottles. Had an "A" on the bottom and they were clearly thicker, not returnables though.

The bottling I will do now will be in blue flip-top, however I want to get a batch of root beer to bottle for my young son who would get a kick out of capping bottles.

Do they still make those thicker bottles (I haven't seen them) or are standard beer bottles good enough for bottling soda?

I don't know about those special bottles, but regular bottles are fine for soda.

Might want to bottle some in a plastic bottle, and when that gets hard you know it's ready to go, then throw all the bottles in the fridge to stop any excess carbonation