Thanks girls! I have pulled these out more than once since we completed the swap but nothing every seemed quite right. I found the "rainbow" layout while net surfing signature blocks recently and knew I had found what I was looking for. SheriR suggested that I use the HSTs that I cut off when I made the blocks (I made many more to go between the signed blocks) and voila.
So pull them out (you know you want to) and please share your progress with us.
