Formal Event Invitation Letter Templates 2016-07-10 | Lion Pick out the best formal event invitation letter templates from our wide variety of printable templates you can freely customize to match any party theme. Also read: Personalized Lego Birthday Invitations Related posts:4th Birthday Party InvitationsBatman Party Invitations PrintableGrand Opening InvitationsCollege Graduation Invitations TemplatesLucite Bar Mitzvah InvitationsOffice Potluck Invitation Wording Samples