I found a site called Kadenscorner.comthat has some fantastic printables.  You can sign up for free to access 3 downloads (a month, I think), and if you require more, you can pay for a subscription.

I came across these cute gift tags: http://kadenscorner.com/634/printable-snowy-christmas-tags-mini-cards/ and thought a lovely idea for Singing Time would be to prepare a ‘present’ (a box wrapped up nicely), possibly with a scripture inside to read out at the end.  On the outside you could attach a whole heap of the gift tag cards, each with a song to sing.  Plough your way through the songs to get to the present inside.

Great if you want to hand out mini candy canes or lollipops to the children as well, but I like the idea of just having a scripture to read about the Saviour inside.  He is, after all, our greatest gift!