型材

型 = 刑 + 土 : Marie Curie (xi) is carving a mould (型) out of a lump of earth (土) using a pocket knife (刑) in the engine's kitchen ((e)ng2). She wants to use it to model (型) the stones in the engine.

材 = 才 + 木 : In the airplane, the King of Chu investigates a Christmas tree with his secret X-ray vision super power. He can see that the material the tree is made out of is not timber; instead, he sees that the tree has been 3D printed.