EliteMasks is a unique masks plugin in which it allows you to create your own masks.
It is not like your average mask plugin, you apply the mask to your helmet and wear it. You will just see a normal helmet but everyone on the server will see the mask instead of a helmet.
Here is a preview of the masks mechanics
The player has worn what seems to be a normal diamond helmet but instead of showing a helmet, we see a mask.
Q: How do I find the skin id for the masks?
A: Head over to https://minecraft-heads.com/
Select a skin you find interesting
Fetch the 'Minecraft-URL' id