Elon Musk took to Twitter Sunday night to announce a new recovery method for an upper stage SpaceX rocket. A balloon — a “giant party balloon” to quote him directly — will ferry part of a rocket to a bounce house. Seriously.

If anyone else proposed this idea they would be ignored, but Elon Musk lately has a way of turning crazy ideas into reality.

It was just in 2012 that SpaceX launched and landed its first rocket and now the company is doing it with rockets significantly larger. And then early this year SpaceX made a surprise announcement that it would attempt to use a high-speed boat and large net to catch part of rocket. And it worked after a failed first attempt.

This isn’t the first time a balloon has tried to be used to return a rocket. Legendary programmer John Carmack’s rocket company attempted to use a ballute in 2012 to return a rocket body and nose cone. It didn’t work as planned and according to officials at the time, the rocket made a “hard landing” around the Spaceport America property in New Mexico.

Just like SpaceX’s self-landing rockets and its giant net boat, the goal is to reduce the cost of launching rockets by reusing parts. It’s unclear when this latest plan will be implemented but chances are SpaceX will at least attempt it in the coming future.