Pop up Christmas Greeting Card:-

Hand made papers red and green 
Fevicol

Fold both the cards exactly at the centre and grease then well.

Draw a triangle and make three perpendicular curvy lines.

Cut the lines till u reach the slanting lines.

Fold each section to the slanting line and grease then well. Turn then to the opposition direction and repeat the same. The more properly greased it is, the more beautiful it will look.

Now fold the card in a way that the tree goes inside. Apply fevicol and attach it to the red card.

Decorate the tree..

And the outside..