Check out KTVT's Elizabeth Dinh reporting about "Mail Call" - A Smithsonian Traveling Exhibition, which is open now through April 15 at Grapevine's Tower Gallery.
See Elizabeth make Valentine's for soldiers as part of the exhibits Hearts for Heroes program.
http://dfw.cbslocal.com/2014/02/12/grapevine-exhibit-looks-at-mail-military/