Weber, Brooklyn and Ceres plunge into two school-inspired challenges: first, they transform lockers into creative masterpieces, then the top contestants turn ordinary backpacks into something super special.

Chuk, Suhani and Lily have their work cut out for them with a sticky Quick Craft inspired by guest judge Karina Garcia, the "Slime Queen;" using Karina's favorite gooey ingredient, the crafters whip up fake food that looks good enough to eat.