NYC’s going to be rockin the bubble for 10 nights this month in an inflatable structure known as The Spacebuster, in English, and The Kitchen Monument (Das Küchenmonument) in German.
This thing can be blown up anywhere and will conform and settle to the place, organically.
I don’t know why it’s just a traveling thing, NYC should buy one for real. It could could be blown up for a party in Central Park or stuffed under the Manhattan Bridge over-pass for a, um, party, also.
Wracking my brain I can’t think of any reason to use it other than a party.