No doubt inspired by the inflatable furniture boom of the ‘90s, British sculptor Anish Kapoor and Japanese architect Arata Isozaki pooled their eye for design together and unveiled the Ark Nova: An inflatable concert hall capable of being transported across Japan, providing an entertainment venue for parts of the country still reeling from the March 2011 earthquake and tsunami. It’s a marvel of architectural design, but that’s not to say it would translate well for other purposes. Here’s our list of things that should never be inflatable!