Nuka Cola LED Light bottle cap. This utilizes red and white and prints in place with support. This cap is designed to fit on top of my other model, the Nuka LED lamp. Its press in place and a snug fit, so show care not to destroy your bottle when pressing it on.

My Bottle Model can be found here

https://makerworld.com/en/models/446513#profileId-353013

The bottom insert that holds the LED Light can be found here

https://makerworld.com/en/models/446520#profileId-353028