The hotel presents Dora and Rodolfo with their specialty, the Ethiopian cake. Yep, that's a cake with a stuffed ostrich carrying an ostrich egg in its mouth.
Guido rides in on Robin Hood, who's still painted green. He offers Rodolfo a bottle of champagne as congratulations, then whisks Dora onto the horse and rides off with her.
At the same moment, Rodolfo recognizes him, the cork of the champagne goes off, and hits the ostrich egg. The egg falls onto Rodolfo's head.