https://phys.org/news/2018-10-neil-armstrong-huge-souvenir-auctioned.html

Armstong's offspring found the treasures after he died in 2012, tucked away at his house or that of their mother, his ex-wife.

Some have historical value, such as flags or medallions he wore during the Apollo 11 lunar mission. Others do not—like a boy scout cap or a pin from his high school football team.