Big Sis/Little Bro Letters

[trojangirl89]

I'm planning on getting matching letters with my little bro. I want it to say something on the back of the letters. I know what I'm putting on his letters but I don't know what to put on mine. I know I want it to say something along the lines of "(Little Bro's Name)'s Big ____" but whenever I think of something cute to put in the blank, it just sounds kind of awkward because of the word "big". Does anyone have any ideas of what I should put? I want to get these letters done soon so they'll come in time for his birthday.