The old guy who owns the place i am staying for a while gave me a bag of this ww2 stuff he found a while back in the garden. It's in Italy, and there was fighting in the area. Some of it obviously is war related, but some could not be i guess.
I have no idea what some of it is though. So out of curiosity I am posting here.
The left bullet (with no black tip) says on it "12", "45" and also "dou" but that could be "nop" upside down.
The handle looking thing is curious and the screw biro lid looking things do look far more modern but they aren't "recent" finds.
dou stands for Waffenwerke Brünn A.-G., Werk Povázská Bystrica during the Second World War while under German occupation. The Germans had almost everything made for them marked with a code during the war so that they could identify the manufacturer but, theoretically, their opponents would not know who that manufacturer was. 12 45 would normally stand for December, 1945. That strikes me as very late for where you indicated you found these, but perhaps its in northern Italy.
I can at least identify the last one... They're replacement nozzles for a pressure washer, obviously lost recently or fallen from the trash bin.