A Nuka Queen needs a Nuka Crown! It should be sided for a head about 168 mm around. My printer is too small to print it as is, so I sliced the crown into 5 parts. I've also included the unsliced version. You'll need to print three caps, one for each bottle, 2 small 1 large. You will most likely have to adjust the way the files sit on the bed.
Update: 12-30-19 Changed the crown parts to make them easier to link together. Added little 'knobs' at the ends to help them lock together.
Update 2: Seem I forgot the middle "large" cap file.