省勁兒

省 = 少 + 目 : Sherlock Holmes (sh) opened a new office in the engine ((e)ng3), and to celebrate it he distributed saving (省) vouchers with little smileys (少) on them. Shortly afterwards the eye of providence (目) visits his office, all of the vouchers in his hands to save (省) on the bill, demanding Sherlock's services.

劲 = 又 + 工 + 力 : Joan of Arc (ji) is training with lots of energy (劲) in the encampment's bathroom ((e)n4). Again and again the presses a power button (力) which releases a boxing glove (又) fixed to a steel beam (工) which she has to hit with her fist to punch it back into its original position.

儿 = 丿 + 乚 : Mnemonic symbol: "son" (儿) sounds similar to "Sun" like in "Sun Wu Kong", so it's gonna be represented by the monkey king. Albert Einstein (Ø-) and Sun Wu Kong (儿) are fighting in the space station's kitchen (-Ø2). Their weapons: Albert Einstein has a shovel (乚), and Sun Wu Kong has a banana (丿).