Im so sorry im not going to do the entire essay for you because im not feeling well but I can give you some ideas <3
btw if you are older than elementary than this may not work sorry
idea#1 A reality where the sun and moon is alive and creating creatures for their needs, the moon creating creatures depending on the cold/ night and the sun creating creatures for day/warm weather. The sun and moon made an agreement to where the moon controls half the year, and the sun the other. But when the snowman start to melt because of season change, the snowman get mad that they can't live longer and declare a protest. Eventually the sun agrees into giving them more time and for them to have day light saving time to have more cold weather without a chance of melting before spring. (something like that)
idea#2 The snowman are mad because the reindeer always winning because they cheat in games. It gets to the point where the snowman create a protest and after three months the creator of the game (who ever you want) Watches their games and notices the reindeer cheating. Kicking them out of the game for a month the snowman win and the reindeer don't cheat again. (sorry this isn't good)