.You can write some slogans on it.
.Make a border a little different you can also make dustbin or something else on the borders related to cleanliness.
.You can also show the difference between clean India and dirty India. If you want to show the difference so first divide the sheet in two parts with pencil ,in any shape that you want, then one side show a clean and hygiene picture and other side show a dirty image or unclean image .
.Write some slogans on importance of cleanliness.
.You can also add this slogan CLEANLINESS MY VOICE ,MY CHOICE.....