Hey Bant, I got a metal detector for my b-day and I took it for a spin, and found this!
Now I thought it was a C02 cartridge, but it was nearly 4 feet in the ground, so unless someone took the time to bury it, or they put shit tons of earth in the front yard at some point, this thing just doesn’t belong there.
It makes a rattling sound when shaken(probably pebbles or some shit) and we live in central-ish Poland.
Any ideas?