It's "Red Ribbon" week at the kids school. The theme this year is "Vote yes for a drug free future". Each day of the week the kids and teachers wear a different thing for the theme of the day. Monday - "I elect to be drug free" they wore patriotic colorss

Tuesday - "Being drug free is no sweat" they wore sweatpants and sweatshirts.
Wednesday - "Team up against drugs" they wore their favorite sport team shirt.
Thursday - "Put a lid on drugs" they wore their favorite hat.
Friday - "Say Boo to drugs" they will wear festive orange and black.

So that explains the silly hats!