Question about Tamagotchi 4U+ Puzzle Pieces

[Tamaguccci]

I was wondering where I could find a full guide on getting all four puzzle pieces for each character in the Tamagotchi 4U+. More specifically, I'm interested in puzzle pieces for characters that are downloaded through the app. I'm having a hard time finding a final fourth puzzle piece for Nonopotchi. Can anyone help me out?

 

[*Hayden*]

The Happy Burger/Mame Flan and Kuchi Crepe should work on all characters for puzzle pieces, I think they're in the custom food and snacks section