Do you know those supermagnets that can be found in old computer hardware? I take one of those, a particularly strong one, which my BF and his relatives found for me once during the advent of their metal detecting hobby. Good for things like getting stuff out of hard to reach places or determining the material of something, though I’m told it’s not so good for those who have put their phone or credit card too close to my baggage. I even once took a toy out of a grocery store toy machine this way (screw the rigged crane, especially when you have a kid who just went through a tragedy).