VA Constitution and the Declaration of Independence
In VA where I teach we have to look at the June 29, 1776 VA Constitution which was written largely by George Mason. When one gives all the credit to Jefferson for the Dec of Independence, one will be started to see how much of the two documents (published at almost the identical time) were. It's a great exercise for your students to do and then to look at the Bill of Rights and see how little the language changed even there.