Here is an old pre-match wrestling saying which describes warming up that I now apply to pre-game softball.The girls think is corny, but it is true:
If you ain't sweaty, You ain't ready.
This got our girls laughing, including the pitcher. Whenever the pitcher pitched a rainbow ( 8U ) the coach would yell out Caw, Caw, argh... Sounding like a crow flying by and getting hit by the ball--get it? lol... Parents would laugh too.
My DD's coach when she was 8 used to say that. Now the girls (who are now playing 14u) who she coached yell that out whenever one of them gets Hit by a pitch.