柯城

柯 = 可 + 木 : Karl Marx (k) is recycling a Christmas tree (木) in front of the elevator (e1). He uses the stem (柯) to make boards for his bed of nails (可), the needles of the tree as the nails for his bed of nails and the branches of the tree to make handles for his axes (柯).

城 = 土 + 成 : Again Charlie Chaplin is unable to exit engine. There is a wall of dirt blocking the entrance, and a progress bar showing that it will be removed soon, but the bar seems to be stuck.