If you want something to scare the kids, this creation by Premier Kites might be a good choice.  It is a well-designed kite and the wings flap constantly.  You can increase the effect by jerking the line slightly, and the yellow eyes add to the spooky effect.  It’s not difficult to assemble, and looks strong enough to last a long time.  The kite flies well, and certainly gets a lot of attention. The sail is ripstop nylon and the spars are a mixture of carbon and fibreglass.  There is an 8ft version available if you prefer something a little smaller. List price for the big one (2011) $94.95.  I bought mine at Picture Pretty Kites, where it currently lists for $74.75, so get in quickly if you want a bargain bat!