Creating with Transparencies!

Have you made anything with Transparencies? I love the look of transparencies and the new clear books that are out. I have yet to make a clear book, although I did buy a few Styrene Blank sheets to make one with - these are a cheap alternative to the pre-made books and can be found at the craft store in the painting isle (where they have specialty & acrylic paints). You just buy the blank sheets