Invitation Wording I Am Looking For Unique, Funny Wedding Rehearsal Dinner Invitation Wording?

I am looking for unique, funny wedding rehearsal dinner invitation wording? - invitation wording

I am looking for unique, fun wedding rehearsal dinner invitation wording? My other son got married just 1 months and I think my creativity through the window away. The couple are biologists and very green. Suggestions?
Thank you,
Kathy