The pair have organized several typewriter “petting zoos,” public events allowing people to try out the machines, and Diven said they have been popular across generations, drawing curiosity and suggesting an alternative to the dominance of digital media.

The Association of Zoos and Aquariums, which represents more than 230 animal care facilities in the U.S. and abroad, requires all of its members to practice an annual disaster preparedness drill to keep their accreditation.