You could cheaply make your own faraway bag/box with copper mesh fabric. The kind the use to stuff cracks to keep out mice and snakes.
I’ve actually thought about buying a small roll for just that purpose. Some of the things I want to put in one won’t all fit in an ammo can. But I didn’t know how fine a mesh I would need.
A Little Paranoia Will Keep You Safe (ALPWKYS) Be a Sheepdog JYD#105
