1. cardboard box mannequin: make a mannequin out of a cardboard box, you can paint it with colors or stick it with colored paper for decoration, and then connect the head, hands and legs with a line or rubber band, then you can play with it.

2. Paper Cup Windmill: Cut a paper cup into four pieces, cut a straight line out of each piece, then put the four pieces together in the shape of a windmill, use a peg or staple to fix them together, then use scissors to make a small hole in the corner of each piece, insert a thin wooden stick, and then you can put it in the wind and rotate it.

3. Cardboard puzzles: cut a piece of colored paper or cardboard into several pieces, and then stick these pieces on a piece of cardboard to form a puzzle, which can be made according to your favorite pattern.

4. House of Cards: Arrange a deck of cards vertically, glue them together, then cut the ends into a roof shape, and then decorate it with colored paper, stickers, etc., you can make a hut.

5. Woolen villain: Use wool to weave a villain's body and head, and then decorate it with colored paper, fabric and so on, you can make a variety of different villains.