First, just a quickie to say that I have produced a new kindle ebook containing many of the previous Friday Puzzles! It is called PUZZLED (available in the UK here and USA here) and contains 101 puzzles and the solutions. If you enjoy the Friday Puzzles and the blog, feel free to show your appreciation by buying one of the books.
Second, this is genius (via @atlasofdiplock) …..
Does it work for you?