I really enjoy having the students decorate our classroom for holidays. For Valentine's day, we made a ton of origami hearts and made garlands for the door and window. (inspiration from this blog!)
Before I gave them colored paper, we practiced making the hearts using old scrap paper. I ended up liking them even better! It was fun to look at them and be reminded of lessons already taught and learned.
My favorites were these hearts made from worksheets used in a unit about sound!