Something like 10 years ago, I bought a bunch of Constitutional References from the CATO Institute for $1 each and gave them to people I thought ought to have a better understanding of our founding documents. Mrs. Grymster carries hers in her purse to this day. That's pretty amazing considering how many purses she's had!
Just looked and CATO wants $5 for theirs now, so this is a good deal. Thanks Al!