Took teeki's idea and made it work for us glued green felt on a backing cardboard (4 bits of cardboard joined together) in a Christmas tree shape with lots of different decorations (stars, circles, vaguely bell shapes, hearts) with strips for tinsel. Currently have it sitting on the floor at the grandparents house where we are today, going to take it home tonight and use 3m poster sticky things to stick it on a wall for them to redecorate tomorrow with DH. I've ended up with far too many decorations for the tree though