We have recently been making seasonal models from paper and glue, we saw a more adult version on a Home made craft show with Kirstie Allsop. I loved the look of the birds on the show and may at some point try a decoupage model myself, the link shows you the one from the show. We have adapted the decorating slightly to fit in with what the children wanted to make.
First make the basic shape using scrunched up paper, we wanted to make a snowman so we scrunched up some newspaper balls and taped them into the correct shape. Be generous with the tape and cover the entire ball until you have a smooth shape. At this point it is easiest to paint over the tape with acrylic paint to give the glue something better to adhere to and leave to dry. On one of our models we missed out this step, the paper still sticks but may take a little extra glue.
Once your model is dry, use PVA glue and stick small pieces of paper all over it, a bit like papier mache. The artist on the television show used brightly coloured paper for this and produced a lovely decoupage effect but we used white paper, as we had plans for our models. My son decided to make a plesiosaur, not technically very seasonal but he loves dinosaurs. Instead of making scrunched up balls for this we had to mould the paper to the correct shape and tape on the limbs.
For the snowman, we covered him in glue and rolled him in a bag of fake snow so that his whole body was coated. Then we just stuck on his face and added a very simple felt scarf and tiny feet to complete the look... a very cute little snowman. Anything you can make out of newspaper and tape can be given the same treatment as you have seen with my son's plesiosaur, which he has decided to paint.
It is not finished yet as it needs another coat of paint, some facial features and a couple of coats of varnish to make it more durable, but I think it looks lovely.