Homemade or purchased, this is fun and art in the wind.
Here are some places to go buy a kite. I couldn't find a store that sells only kites made with eco-friendly materials. Any suggestions??
photo from Into The Wind Kites
Eco Kite Kit
http://www.downtoearthtoys.com
http://www.intothewind.com/
http://www.funwithwind.com/
This is a scientific sort of kite kit:
http://www.livingecho.com/products/gift-items/toys/gaiam!kite-building-kit-gaiam-64-0043
Make your own to give, or what about a kite- making kit that you've put together:
Instructions / patterns:
http://www.motherearthnews.com/Do-It-Yourself/Make-A-Recycled-Kite.aspx
http://www.howtomakeandflykites.com/ - nice selection of kites to make
http://www.making-and-flying-kites.com/ - nice selection of kites also
Materials:
http://www.goodwindskites.com/