Universal Caps

16/07/2015: Now Customizer is available for this design, so you can create your own STL without editing the scad file. I hope you enjoy.
This is just a 5 minutes design that everyone can make, but still I find it very useful. You can create your own caps for almost every bottle. They fit quite well.
I tried to label the variables you can modify.
https://youtu.be/nqnh0AfhVDk