Have you ever seen the colored bells from Krystal Bell Method???  We've been using them at church for some time.  They're SO incredibly easy and make music that puts a broad smile on every adult listening. 

Today, our Keepers group (+ brothers) borrowed the bells.  We visited a local nursing home to sing and play several Christmas tunes for the residents.  Smiles abounded.  Our hearts, too, were filled to the brim.