The store I work at does a card club once a month. The ladies who come get to make 5 cards of 5 different designs - they leave with 25 cards. That takes a while to finish - so when we prepare the class, we have to make them simple cards.
I love Unity and we sell Unity at the store, so for these cards, I used Unity. The paper is mainly American crafts cardstock (which we carry at the store) and a couple pieces of pattern paper.
The girls had fun and changed things up to make their "own" creations with the rest of the stamps I had taken with me. I had fun teaching this class!