Nắp Chai "True Lid"

This is a Lid for True Fruits Bottles.

I was looking for a way to upcycle these True Fruits Bottles that left after drinking them. So as an owner of a 3D-Printer. I instandly had a Plan to do this. When I tested my first one, I noticed after some use-cycles, that it started to smell a little bit. And it turned out only to use food safe material, it won't be necessarily food safe after printing. 

So the best way to solve this problem was to coat the contact surface, that all gaps filled up and making the surface smooth and even. To gain a win-win situation, I decided to use food safe silcon resin that allso made it leakproof.

So If you are looking to make one of these too, 
please do a coating on it to prevent a health risk!