Back when I made my Dead/死 ambigram, I said, “Now if I could come up with an English rotational ambigram which is also a Chinese rotational ambigram, and which has the same meaning in both languages, that would be the holy grail.” I’m getting closer:
The symmetry here is reflectional rather than rotational, but it still comes close to my goal: an English ambigram which is simultaneously a Chinese ambigram with the same meaning. Unfortunately, the symmetry involved is pretty trivial, even more so in the Chinese than the English. (Bilaterally symmetrical Chinese characters are approximately 0.68 RMB a dozen.) Ideally I’d like something involving more than one character, or at least a character that’s not naturally symmetrical.