Two of the most popular Chinese New Year phrases in Mandarin are "Xin nian kuai le" and "Nian nian you yu". The first means happy new year! The second means may you have abundance this year. The character "yu" sounds the same as "yu" for fish with a different writing. That is why people like to draw fish with that phrase and eat a whole fish for New Year's.
I used this printable for writing practice on spring couplets. Students took 1 sheet of red paper, cut it in half length-wise, and glued one phrase on each half sheet. They traced the characters in markers and practiced speaking the phrases.