Dodgeball
https://www.youtube.com/watch?v=SKTkLyAduP0

Whoopee Cushion
https://freesound.org/people/TaXMaNFoReVeR/sounds/325434/

Walrus
https://github.com/ExtraCells/ExtraCells2

City Rug
https://www.amazon.com/Childrens-Factory-Classroom-Homeschool-LC206/dp/B002R5A0ZQ