The left part of the simplified character 战 from a certain angle looks like a tank, especially if wheels are added. And what about the right part? Well, I don’t know, who is on the right part…

同 “same” + 情 “feeling” means “compassion”. Does the 同 with its sorrowful mouth make a pitiful face, feeling for someone else troubles or is it a hypocritical trickster just pretending to feel sorry?

雨 is “rain” and with just one splash the right part of 雨 becomes R and the rest just kind of drops in the right places.