Kite flying is a great family activity and is fun for kids of all ages. Kites can be had for as cheap as $1. They should be flown only in parks and never near power lines. Its best to fly on slightly windy days for ease of flying. The following is an excerpt on kites from wikipedia on the history of kites .
"Nearly 3,000 years ago the kite was first popularized, if not invented, in China, where materials ideal for kite building were readily available: silk fabric for sail material, fine, high-tensile-strength silk for flying line, and resilient bamboo for a strong, lightweight framework. The earliest known Chinese kites were flat (not bowed) and often rectangular. Later, tailless kites incorporated a stabilizing bowline."