Well at least I am quicker this week!! My mail art is a plain white envelope, which I have done a very technical thing to... bubble blown LOL!! You know like the kids do, you put some dish liquid and food colour in a bowl of water and blow into the water to create bubbles, then press the paper on top, very technical indeed. I have stamped it with Basic Grey stamps, and added some rhinestones, for extra bling. Then finished it with a "Enjoy" sentiment.
Australia Post couldn't loose this letter!