What are some good classroom musical-themed puns?

For examples, my classroom rules say "Don't be Wicked, follow these rules" and I have a board with stress relief that says "Be More Chill with these tips." I need a pun for the baskets where students hand in work, the clipboards where they pick up work when they are absent, and my board... show more For examples, my classroom rules say "Don't be Wicked, follow these rules" and I have a board with stress relief that says "Be More Chill with these tips." I need a pun for the baskets where students hand in work, the clipboards where they pick up work when they are absent, and my board where I post homework. Any other good puns appreciated!
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