Modular e-cig case

A quickly made modular e-cigarette case for holding parts along with e-liquid. Each tank can be put with its bottle, so that you always know what liquid is in it.
The supports are a fix to the initial version, where supports were printed along with the holders, but were too thin and broke instantly.
/!\ Warning, after a few tries with different printing settings, I obtained pieces that were unable to plug one into another. I'll re-work on the plug sizes, and make a few more tries so that I make sure the dimensions are correct.