Below are the Partyready Store's correctly worded invitations. While they mention the office, you can customize them for a family or friends gathering.
Secret Santa 5x7 Invitations (handout or mail)
Click on the images to go to each product page on Zazzle. Five card colors are available.
Secret Santa Invitations by Partyready
I could not find a well-worded Secret Santa party invitation. Most invitations mentioned bringing a gift to exchange on the day of the party, which is a gift exchange party. A Secret Santa involves picking names and keeping it a secret who receives each gift. This gift-giving is a two-part process: our family used to draw names on Thanksgiving and then exchange gifts on Christmas, keeping the identity of the gift-giver a secret.
Secret Santa 2.5x2.5 Invitations
These little budget cards are perfect for distribution. Instruct the participants to fill out the paper with their names and gift suggestions, then fold it and place it in the accompanying envelopes. Tell them not to write anything on the outside of the envelope. Later, everyone can pick a card from the box. Click on the images to go to each product page on Zazzle. Five card colors are available.
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Secret Santa Flyers A5 Paper (5.83x8.27)
Flyers are ideal for a group of 25 to 12,500 or more. The more you buy, the bigger the discount, up to 70% off. These are just right for a large family, group of friends, office party, club, church, or any event. Click on the images to go to each product page on Zazzle. Five card colors are available.
Secret Santa Gift Exchange Party Invitation Flyers
by Partyready
Now that you understand what a Secret Santa is, it's important to clarify that an invitation that doesn’t provide all the details is merely a gift exchange. For a Secret Santa among friends, you could phrase the invite like this example: "Join us at Smitty's for drinks on November 31st at 7 PM to draw names. The Secret Santa Gift Exchange will be on December 21st at 6 PM at Mary’s place..."
More Christmas invitations with different themes are available at PartyReady Christmas Invitations
Check out all of Sandyspider Gift Designs & Writing Listings