Let me think on that one and I'll get back to you...I warn you in advance it might be on the "cheesy" side
The first thought that popped into my head was something I've seen on posters etc..
T.E.A.M (Together Everyone Achieves More)
maybe you could work it in somehow if you wanted
I love to help...I don't have a classroom of just my kiddos anymore so I miss this stuff...I will see what I can think of. What grade do you teach? Are you integrating your theme into or with anything else like discipline/motivation/recognition/expectations? Sometimes thinking about that helps. I like your theme! I'll never forget an interview question it seems like I was always asked...what synonym for teacher would describe you...I always said "coach"