The only tradition we are openly sharing with family and friends prior to the day is a “cake the face” bet prior to cake cutting. Guests will have the option to put money in the jar of the person they would like to see get caked in the face while the couple shares their first bites of cake. SO, bring cash if you’d like to participate. 
Example: Jarrett receives $50 and Rachel receives $20, Rachel will get to shove cake all over Jarrett’s face while they share their first bite.