李树

李 = 子 + 木 : In the space station, Li Qingzhao shakes a Christmas tree which is decorated with eggs. The eggs fly off and as they break open, plums fly out of them.

树 = 对 + 木 : Sheldon Shrimp cultivates a Christmas tree in the space station's bathroom. He is very happy that he found the right tree, just the one he imagined, and—in his mind—marks of the tree he imagined with a big green check mark.