One Package of 8 Unicorn Sparkle Postcard Style PartyInvitations. These pretty Unicorn Sparkle party invitations feature a gold foil stamped Unicorn and are perfect to invite your guests to your unicorn theme party! 8 invitations and 8 envelopes per packages. 6 inches X 4 inches. Pre-printed lines For, Where, When, Date, Time, and RSVP.