Good morning! Here are the answers in repsonse to the questions you posed-- #1. The only real writing prompt I use for the language arts lesson is that when the students' name designs are completed (and they are symmetrical designs -reflection symmetry) they do tend to resemble "aliens." I tell the students to make up a story about their character; ie. give it a name, what planet they're from, etc. and the students take it from there.
#2. Couldn't the Ben Franklin designs be colored individually? Or, each piece be done to be a reflection of the other? Or make each half of each desgin symmetrical to each other? From there, make each piece a reflection of one another?
#3. There is a web site for the Metropolitan Museum. The URL is http://www.metmuseum.org. You can reach the gift shop by using the URL http://www5.metmuseum.org. I looked at both of these areas and unfortunately the publication I am referring to is not featured at this time. I guess it would be impossible for them to include all of their items. There was a toll-free # 1-800-468-7386. Let me know if you need any other information regarding this material. I have a copy of it in my personal library.