If you are looking for a cute bulletin board for February, that aligns with the Core Curriculum Standards for writing, here is your answer! In color, or black and white, students will write "I really love my..."
I suggest reading a book to start that models a characters love for something. "Knuffle Bunny Too" by Mo Williams is a wonderful book for this! A Valentine book can also be used. I suggest having students brainstorm ideas before starting, and reviewing opening sentences, supporting details, and a closing sentence. This aligns with CCCS W.2.1.