waterproof bag- this option is better than the zip-lock bag, but it also costs a lot more. microwave on high power for 5 minutes. consider the total message and tone of your letter until you pick the term or phrase to complete the correspondence. another important tip, is to never allow them to eat from the table. so i am reading your post as i try to do when you post... always looking for something i can relate to, something i can make my thought to respond in my sort of way. then, when it sets, the bubbles remain trapped in the dough. 