Baby Bottle Holders (Dr. Brown's 4oz, 8oz & Breastflow 6oz)

I've created a few different bottle holders for my daughter's bottles and a friend's baby bottles. As you can see from the picture, I customized the design with her name, it's fairly easy to do in Tinkercad.

Breastflow 6oz bottle has a 71mm holder.
Dr Brown's 4oz bottle has a 54mm holder.
Dr. Brown's 8oz bottle has a 61mm holder.

All three designs go about 2/3rds of the way up the bottle. You most likely could use other bottles with these designs, which is why I include the holder sizes