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.

You'll need both a male and female supports for ends, and as many holders and hermaphrodite supports as you want.
No printing material should be required.
FeeCAD sources are to be found in the 7zip archive.