Pepperoni!

"Give-it" is a great trick. Once they learn that, you can control everything in their mouth.

Even the world's best treat -Pepperoni!
I taught this using only REWARDS. I am not using intimidation and as you can see Flint's ears are perked up and her eyes are bright (she does not look scared). My "gve it" command is cheerful, and no threats tied to it.. It's just another trick for Flint. :)