Materials: colored paper, scissors, paper cups.
Step 1: Cut a hole near the top of the balloon with scissors and tighten the air outlet.
Step 2: Put the hollow cap of the balloon on the paper tube. When covering the balloon, be careful not to tear the opening of the balloon.
Step 3: Wrap the paper tube with double-sided tape to prevent air leakage between the paper tube and the balloon.
Step 4: Stack colored papers of various colors together and cut out small crumbs with scissors.
Step 5: Put the small pieces of paper into the paper tube, and gently pull the balloon blowing port below, and the colored pieces of paper will be thrown into the air.