Reddit mentions of Cintz Parachute, 20 ft Play Tent Parachute, with 20 Handles - Comes with a Carry Bag.

I think we bought the 20 ft parachute cause this thing is huge! When the kids aren't playing with it I use it for shade in our back yard by tying it to our deck and our fence. It keeps the sun off the kids when they are in their inflatable pool. If you get it out, be prepared for every kid in the neighborhood to stop by your house... which is great cause you can't use this thing properly without at least 7 or 8 people.
http://www.amazon.com/Cintz-Multicolored-Play-Parachute-handles/dp/B002RTF1FG/ref=sr_1_11?s=toys-and-games&ie=UTF8&qid=1342208721&sr=1-11&keywords=play+parachute