Classic Chinese
绕口令 target tones and easily-confused initials:
四十四只死狮子 (forty-four dead lions) drills s/sh, and
吃葡萄不吐葡萄皮儿 (eat grapes without spitting out the skin) drills p/b. Mandarin teachers and
相声 (xiàngsheng, crosstalk) performers use them as warm-ups.