locking jar lid
thingiverse
Here's a great solution for securing your cans - a reusable cover with a locking clip that fits perfectly on cans with a diameter of 75mm. I personally find it extremely useful for storing wet dog food, but rest assured it can be used for all your can storage needs. One thing to keep in mind is that this cover isn't designed to be airtight.
Download Model from thingiverse
With this file you will be able to print locking jar lid with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on locking jar lid.