Change the slogan??

Should I change my slogan for the assignment3??

I have no idea about it...
so hard...

Lecturer want me to change it...
something like fairytale... ?!
Understand??!

How???
I really don't know...
"Pls save the water"????
I hate this...

Have you got any nice comment???
Pls tell me... If you got any...
Whatever you think...
Just tell me...
I really need your suggestion...