Friday lunch box

Still learning hard about character bento making. After a few times making kid bento it shorten the preparation time but i still dont get the catch of bento making. What do you do with all the small pieces left over after all the shape cutting? do you put in food that he didnt like or wont even eat just to make up the character nice bento? there are so many questions in trying to become creative. I dont want to waste food and i dont want left over in the bento. The hardest part is everytime i ask Yuta what do you like in the lunch box, he will say exactly the same thing, onigiri, tamago yaki, pasta, fruits and put it in the race car lunch box. So i actually have to play around with only this 4 item. This is a little exception that i put in sausages. Learning in process...