We have a daily theme. We are kicking our week off with each student getting a brick (a red construction paper cut out) and they write there name on it. In the gym we are going to have an out line of a house and on the roof have written "building a drug free life" and each student will help "build the house" by adding their bricks. (The 5th grade math teacher is even getting her students to figure out how many bricks it will take!)
On another day we are doing disco day. With a new state law requiring more exercise, we do 10 minutes of "dancing" in our classrooms each morning to music over the intercom, we decided to incorporate songs, so on disco day the kids are going to dress "disco" then dance to Staying Alive. We will change the chorus to Staying Alive, Staying Drug Free AHHH.... Staying ALIIIIVE... well you know how the song goes.
The rest of the days are similar to the other poster, crazy socks, hat day, and we also do backwards day (turn your back on drugs and the kids put their clothes on backwards.
Hope this helps a little. It should be a fun/funny week. Just as long as they get the message!