This postcard (4x6in.) is going into the next Happy Mail. I'm planning on printing both sides out and glueing them back-to-back. Then, I the recipient wants to they can color the flower doodle and send the card to someone.
You're welcome to print my postcard out and use it too. I printed the postcard from my post using Preview at 53%, standard printing, Grayscale, and A4 card stock.