What you need:
Cardboard (recycle a cereal box)
Step 1. Cut cardboard into a cloud shape.
Step 2. Cut cellophane into strips.
Step 3. Glue the bottom of the cardboard and place the strips of cellophane on it.
Step 4. Overlap the cellophane strips with more so it’s a downpour rather than a shower!
Step 5. On the same side, glue again and stick the cotton wool balls all over the cloud, filling it in.