Bouncy, Bouncy.

This has appeared on the top of Princes Mall at the corner of Princes Street and Waverley Bridge.

I'm not sure if it qualifies as a geodesic dome but the aim is to fill your children with lots of French Fries and fizzy drink then catapult them up into the air and see how long it takes before they throw up.

Don't worry about the screams, they're loving it really so why not sing along with this.