Have your Bella Puzzle™ made with two figure pieces inside it.
A "whimsy piece" is a puzzle piece shaped like something. Common requests are hearts, birds, musical notes, pets, or tools of one's trade. You could even order the "man and woman" figures shown in the example photo.
Figure pieces are supposed to be meaningful and personal. A writer and a chef might ask for two figure pieces shaped like a pen and a spoon, for instance.
Be creative! And please be specific. If your beloved pet is going to be acting as a ring-bearer and you'd like to immortalize them with a figure piece in your puzzle, the request for a "dog" is too broad; it's best if you let me know the breed.