DIY Lightwind Kite.

Neatorama reader Thomas K. Horvath has a suggestion for a weekend project: make your very own lightwind kite:

Build your own small zero or lightwind kite and fly with it actively in horizontal gliding, flatspin or diving mode. this kite is designed to fly in the most gentle of breezes or without any wind in confined areas like parking lots, courtyards and parks. in normal winds it hangs up there, cool for kids too.

Bonus: it looks like a bat-kite! Link - Thanks Thomas!