The reindeer orchestra.

http://interactiveboardresources.wikispaces.com/Interactive+Christmas+Activities

Here's something that is seasonably supportive. Great on a big board-  but ok on a smaller one with good mouse control....  here's a screen shot below and a link above.

 It's on line so choose your moments. The idea is to click the reindeer nose of the reindeer that the number above the reindeer says.  A nice introduction to the notion of  written musical notes that we follow to make a tune....