When I make my cards - I usually commit to 24 per challenge - I choose a design and then make 6 of the same. I've found that I can get 6 A2 card fronts from one 12x12 piece of patterned paper so that usually works for me. The challenge we're working on now is Romance - anniversary, miss you, love you, etc. Here are the cards I'm mailing this week.
As you can see, the cards don't have to be fancy. Most troops are not in a place where they can purchase cards to send home. They are just so thankful to receive anything that you are willing to create.
It's a fabulous project. I would love to have you join us.
Hugs and Happy Crafting,