I created these for my intermediate students and they really bought into it. I started off writing them myself, but as time passed we took the time to learn how to write sincere, detailed praise and thanks and it took off from there. Looks great on coloured paper and taped to the entrance of the classroom door. At the end of the year, pile up each student's 'shout-outs' and present them. I have pinned a couple other templates - for variety on the wall.
Kindness Jar slips to use in your classroom. Students fill out a slip and then put it in a Kindness Jar. You can choose a few slips to read at the end of each day. Great way to encourage acts of kindness.