The Heart Ornament is my creation. It is a modular model that consists of two Heart Modules and a connector. The video instructions to fold the Heart Module can be found here, in one of my previous posts. The following video shows how to fold the connector and assemble the ornament:
I folded the Heart Modules in the video with 6" (150 mm) red Tant paper, and the connector with a 2"x 4 ½" (50 x 113 mm) rectangle of green Tant paper.
For the Heart Ornaments in the picture above, I used different decoration folds on the hearts than in the video. I also used some bicolor connectors, folded with foil paper. You can find more ideas for the connectors in my book Contemporary Origami Decorations . The book also contains instructions to fold a lot of modulars that will make attractive and unique Christmas tree decorations. Please remember to add the book to your Christmas shopping list!