To cut two cartons, choose a thicker carton.
Draw a Christmas tree on the cardboard.
Carve the Christmas tree pattern with a paper cutter, and then carve a groove on the center line so that the two pieces can be inserted together. Be careful not to carve the groove too wide, just as thick as the carton board, so it will be inserted tightly.
Put two cardboard boxes together and the Christmas tree will stand.
Prepare a green sticker with the front side folded relatively.
Stick the sticker on the corner of the Christmas tree, then cut the edge and leave a little edge, so that the thickness of the cardboard can be wrapped.
Wrap the edges with extra stickers.
Wrap the Christmas tree completely in the same way.
Punch holes in the Christmas tree with a punch.
Decorate the Christmas tree with beads and shiny stickers.