If you are not having a reunion for a  specific number of years (15th, 25th, etc.), why not consider a “point in time” memento?
Example:  “10 years ago today” or “20 years ago today”

This is a souvenir or gift that is
A frameable keepsake
A conversation-starter
And an ice-breaker

Back to Reunion Reports
Guests cannot resist chatting and reminiscing!

“The anniversary party was wonderful.  My Mom and Dad were so impressed with everything we did and thought it was really sweet…to send the news of the past.  I heard several people talking about it after opening theirs.  It set off a series of rememberies.”  C.M., New York 

"The Reunion Reports were one of the highlights of the Party.  They were tied to the year Mom was born.  Everyone had fun talking about how interesting they were.  Thank you."
Jan, Florida