You could always just go with 強 - it just represents “strength” (in Chinese / Japanese) but if you’re looking for a symbolic reminder it should be sufficient, and a single Kanji is often used for symbolic purposes.
You could always just go with 強 - it just represents “strength” (in Chinese / Japanese) but if you’re looking for a symbolic reminder it should be sufficient, and a single Kanji is often used for symbolic purposes.