Twitter Door - have a laminated strip for every child and they get time to tweet about something they learned, liked or happened during school that day! Gets them writing and ties in something they're probably already interested in!
when students participate when no one else is or answer a challenging question they can get 'smart beads' to wear. they trade in smart beads at the end of the day for a little note that goes home to their parents! cute!
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.