An Idea for giving Terra Cotta Pots a Face Lift

Hello everyone I hope your having a wonderful day.

This weekend as I was viewing different blogs I came across this photo.
I have several old terra cotta pots that are in good shape. 
I have been researching ideas to give them a face lift.

Could I achieve this zinc look with chalk paint?

If so, I would like to do a grouping in the yard with different sizes.

Thanks for stopping by ~

Cynnie