1.   Cut the Rainbow Shape
Draw a large rainbow arch on your cardboard and cut it out. Make it big enough to hold comfortably and show off all those colors.

2.   Paint the Rainbow
Start with red along the outer edge. Then paint each stripe inward in this order: orange, yellow, green, blue, and purple. Let it dry completely.

3.   Add Slits for Streamers
Carefully cut small slits along the bottom edge of the rainbow.

4.   Attach the Streamers
Cut long strips of crepe paper or streamers. Match each color to its stripe on the rainbow and slide or tie them through the slits. Secure with glue or tape if needed.

5.   Fluff and Flow
Gently pull and separate the streamers so they hang loosely and flow freely.