Thanks for your patience, we are working on this area.
We manufacture Void (tamperproof) labels. There are a few options to choose from.
1. Void - These labels leave the word "VOID" on the surface and on the label if the label is removed
2. UV Void - These labels leave the word Void on the surface and you need a UV light to see it.
3. Holographic Void - same as 1. but the void is holographic making it stand out even further.
We have lots and lots. you choose the size and we make them
Yes we can print on them too for you.