OK, LOL I’ll tell my husband. She likes to nibble on him. He’s salty I guess.
You can build your own equipment if there isn’t a group nearby. Lots of info and specifications on the USDAA website.
She is a lab pup and is testing her mouth. It is of value that you “yelp” whenever she puts her teeth on you. That is an indication to the lab pup that her “bite” is to hard and what she thinks is that any teeth on humans is to hard of a bite.
Remember, what a lab is learning as a puppy is to “calibrate” her bite. She is trying to learn how to be gentle in her bite to be a retriever and is using your skin as the calibrator tool. Usually, a pup will learn by “wrestling” with an older dog and biting it on the neck. When the bite is too hard, the older dog verbally lets the pup know. Your verbal admonission will go a long way in this teaching.
When my chocolate lab was learning, I used to jerk away and yell “ouch” and she would get all worried. That eventually led to her responding to “no bites” whenever she got tempted to put teeth on skin.